This is not a what saddle do you think is best question. Instead its a compatibility question, maybe its happened to other forum members.

I found by trial and error, usually WTB saddles agree with me. I purchased a WTB Rocket a few years back to use on a retro road bike I restored. It was very comfortable on that bike, later I installed it on a Cannondale Cyclocross (X7), I had. Well, figured I would install it on my Trek 7.2 FX and all would be well.

But it hasn't been as comfortable on the Trek as the other two bikes. Have I changed, or is the hybrid geometry changing my comfort level for that saddle?

I also have a WTB Rocket on my Giant NRS2, which came on it, and is very comfortable, and another WTB on my Schwinn MTB. I am thinking of buying the WTB Pure Race saddle to see if it works on my Trek. I have tried oher brands of saddles, but, none works for me like the WTB's.

To summarize, is my FX affecting my saddle or is it my imagination?