I would be thrilled for this. I have 3 students currently with very bad backs. Physical bony issues and disc issues and all can sit the trot and even the medium and extended gaits… however, there is a personal cost to their bodies; that will cause them to not be able to ride… their injuries WILL be limiting eventually.
One client has given up sailing and water skiing, and almost all other physical activity to keep riding every other day… she’s at 4th level now and hoping to do the PSG next year, but she can’t ride daily or she’s in so much pain. If she could post these bigger movements she probably could continue to ride in the sport many many more years. Do I think she’s getting an advantage, no… do I think keeping a fantastic member of the dressage community engaged and excited is important, YES!
Just because someone can sit doesn’t mean they should. This goes both ways. Just like just because I can sit a horses bigger gaits but that horse prefers someone to post; he should have posting. I’ve known some that don’t like me to post, even the stretchy trot (although I think that is mostly because they don’t like to see the rider moving a lot up there vs being still, either way those individual horses preferred me to sit all the time)
I’d be fine with a mixture of posting or sitting or to see something along the lines of all sitting or all posting for the test. Meaning pick one and stick with it etc. as personally I find the downward transition off the bigger gaits harder to do posting. Mixing it all up I think does make it slightly easier but let’s be real… this is all hard.
Anyone saying posting is easier… try posting passage and piaffe… and the transition between the two
talk about freaking HARD!