The 16 1/2" Wintec is better on a 14.2, really, because of the flap size. It'll fit on a smaller pony, just looks big.
The newer model tree (post 2010, I think) is a lot flatter. US Welsh ponies are a bit different to those over here. If you had an import I'd have said it was probably a Section C and a Wintec ought to fit fine, tree shape-wise.
Wintecs come up large so the overall length on a Wintec can be longer than some other makes. I have a 15" maxam for my pony, but a 15" wintec is just too long for him (both measured the same from centre of stud to centre of cantle), also the 17" Wintec I bought new for my TB actually measures at almost 18" which is very annoying, but fortunately still fits her.
The saddle must fit the pony first and if it doesn't fit the rider then they have a problem (where bareback or a treeless might ne the answer).
Last edited by Clava; 10-11-2013 at 08:20 AM.