All the Friesians I have seen are narrow for their height as befits a harness horse. We have a local Dutch, real Dutch not Amish Deutsch population here and several Friesian breeders. My first coach as a returning rider relocated to a Friesian & dairy farm for a couple of seasons when she was between facilities. I’ve seen a number of Friesians.
That farmer turned up a couple of years later driving four in hand in a demo of Friesian harness horses at a local equine expo. Half a dozen rigs with 1 or 2 horses and then the 4 horse carriage riding patterns at a road trot. As harness horses, spectacular. As riding horses base narrow and not my cup of tea. I don’t really like Friesians under saddle.
As far as ASB in breeding, I have learned way more than I ever needed to know about KWPN and DHH, which is both a standalone North American registry as well as a non official term for harness focused horses in the KWPN. This is from the current trainwreck thread about Kate Shearer breeding crap DHH mares for jumping. Despite using Big Name Stud frozen semen her foals turned out very harness type, flat croups, pogo canter unnaturally high heads. Don’t do that for dressage, please.
Anyhow, I don’t know about the North American DHH registry which is a lower prestige registry. But the KWPN only licensed a few ASB stallions some years ago for harness lines, and then abandoned the experiment. So it is not true that ASB is accepted into KWPN.
I don’t know what North American DHH accepts.
But I also think you will do better breeding horses for dressage out of dressage lines and registered with a real WB registry. If the foal is registered KWPN it’s much more marketable than if it’s DHH.
I also think you would do best as a novice breeder choosing a breed that you click with, that has the mental qualities that you want, and that has the ability to do dressage to some degree. There are lots of quiet minded WB, and WB with less extreme gaits. If you could figure out what lines those are, you could have an attractive niche.
If you like Iberians and get along with their super busy minds, you could breed Iberians or a known Iberian cross. I know a breeder way up in the remote back country that produces really nice Andalusian x WB that are great ammie horses. But she’s been breeding for 40 years and knows what she’s doing.
The big variable costs in breeding are vet bills including AI if you go that route, and care costs. If you are in the back of beyond on rangeland, especially if you have no mortgage on the ranch, and if you have your own stallion and pasture breed and foal out at home, and grow your own hay, your maintenance costs plummet and your foals are almost free. And growing up on open range is the best for early development.
I know there are a number of sport horse breeders in Canada that are located in the back of nowhere for this reason.
If you want to hobby breed within reach of your urban metro job that is paying the bills, however, then you likely can’t own a stallion and will need to be paying much more to keep mare, foal, young horse either in board or mortgage on your acreage or leasing land.
Anyhow there is certainly a market for rideable and affordable ammie horses, but I would suggest starting with a breed and understanding that breed standard very well, including the types within that breed (for instance types in QH, Morgan, KWPN, Welsh, Arabs, Haflinger, etc). Then understanding the lines within the type you want, pros and cons. Off the top of my head, Foundation Hancock QH can be gorgeous athletic animals (blue roan!) but are said to have an ornery streak. And within the major WB registries there are jumping and dressage lines. And TB vary in confirmation and also in mind.
Iberians also have some significant differences in build and temper.
So you can work within many breeds to find the lines that are best suited to dressage conformationally and have good minds (for their breed; every Andie will be busier and more forward than virtually every QH for instance). I’d suggest doing that breed research first, casting as wide a net as possible then going into the lines in your chosen breed. And going to breed shows where you can. The in hand stallion mare foal young stock classes are super interesting if you are interested in a breed. You see a lot of variation in conformation and movement even within one breed independent of trained performance. You don’t get to see much conformation watching jumpers and even in dressage, the horse has been taught to carry itself in an optimum way so you don’t always get a clear picture of what it looks like standing still. But obviously the performance record on that line also matters. Understanding how conformation and performance are related in your breed of choice is important.
I would suggest starting with a specific breed, choosing the right lines for your purposes and producing registered foals. Unfortunately, if you sell them young you won’t have a great sense of what they turn into because that’s dependent on the buyers skills and goals. I’ve seen enough quality WB flat line or get chronic strain issue with backyard dressage trainers and never get past Training level. But if you breed two foals and keep them 5 years to start, unless you are on the old family homestead in Manitoba or Saskatchewan where the horses run free, that’s a huge hit in boarding costs and you likely aren’t going to want to keep breeding until you sell the first crop.
It is very very easy to end up with a field full of young stock, no time to handle school let alone break them, and no cash for routine care or to send them out to be started. Then suddenly you are in financial trouble and trying to rehome unbroken 8 10 or 15 year old horses as projects. I’ve seen this happen a couple of times to people who had low marginal costs for each additional horse, and got themselves in over their heads with horses they didn’t have time for.