I'm in the process of buying one. My friend has for sale. my saddler is booked out on Tuesday to fit it......
I believe from the search i have done on this forum there that you do need to try before you buy...the stirrup leathers are set back, so it may improve postion's or make's you feel unbalanced. But all in all from what I have read about it, it's a good saddle to buy and very comfortable...I can tell you more next week once i've tried out mine (hopefully soon to be) saddle.