I guess that's what people mean about my supposedly long legs. I love Pony, but if I had realized how much of a mis-match I was, size-wise, for him, and all of the problems it would cause, I'm not sure if I would still have gotten him.
Actually, you are not a disproportionate size for Pony.
He covers most of your leg well when extended and certainly when shorter stirrup.
No horse that I know of carries their head & neck equal to the torso and head height of a rider naturally.
For me, finding a saddle for you would mean finding a saddle with a more forward flap so your longer femur is covered.
I also would like to see you in 1/2" -1" larger a seat size to see if that made a difference in your ability to sit the sweet spot of balance between butt, saddles seat, stirrup bars and help to give you the added fine-tuned balance we all can use to our benefit.
As saddle parts are made to balance a saddle together, just sitting in a larger sized seat may fix many issues you
currently have in fit I see by just looking at pictures.
Pony's fitting issues are a different matter than yours though. What size seat are you trying if I can ask?
I know my English saddle is a 17.5" close contact.
I rode the exact same saddle in a 17" and there was a marked difference in sweet spot placing me deepest, length and shape of the flap. Surprised was I..
I was astonished to see it, but pictures do not lie when "fitting"...
I wanted to try a 18" to see what would happen, what it would feel like, but there were none available and we fit the 17.5 and were comfortable so 17.5 is what I bought...
It is only a number was told and that is true...and Pony can
carry a larger saddle too!
Something to think about...