I'm curious as well. I have sat in both the Extreme and the Freedom Fit. I didn't like the Extreme but loved the Freedom Fit. But so far I have been unable to find one to try on my horse.
I have the Xtreme and love it but it fits a bigger horse. It doesn't fit my colts very well but fits my 16 hand gelding great. It also fits my mare that is as wideas she Iis tall. Very well made.
I have two of the Freedom Fit saddles, one is for a short stocky cowbred horse, the other is for an all race bred horse- they both fit really well on them. And I really like how they balance me and set me lower to my horse, I feel more secure there than I do on other saddles that set me up higher- where it's harder to get a good feel. It might be because I started riding english before western, and I like the close contact, I dunno- but I do really like these saddles more than any others I've tried. Plus the quality is great and they are affordable!