Settle down. I simply told the OP to be cautious of flex trees because they aren’t all created equal. I didn’t put all flex trees into the same category.
I too have a Circle Y Flex2 saddle, and just ordered a 2nd one for my other horse. However, I honestly don’t consider them a “true” flex tree because the entire tree is not flexible; only certain parts of it.
However, I would never put the original version of the Circle Y flex tree on any of my horses. Hence why they scrapped it and went to the Flex2. It was not a good design.
Again, you should be working with a trainer. Do you have someone who can help you?
If your saddle fits well, you don’t need much padding (thickness) to it. You also, in my opinion, want a contoured pad that is going to match the angle of your horse’s back. I myself also prefer to have a wither cutout so that you don’t have any pressure on the withers.
Size-wise (length and width) you can get in a variety of options based on how much skirting is on the saddle you end up with.
- Get horse
- Get saddle
- Get pad
In that order.