I’m not too sure that thinking anything less than a 6″ fork is a compromise.
I’ve got 140 Fox Float RLC’s on at the moment, which replaced some U-turn revs which I ran at 115mm. I’m think that I’m not really noticing the extra travel so much as the improved damping control and line holding ability (qr15) through rock gardens and really cut up stuff.
On the other hand, with the revs set short, the bike was phenomenally quick and responsive on smoother and tight singletrack. Every forkI think is going to be a compromise, unless your riding the same type of stuff all the time- I probably should have bought a Talas, but the price for the Floats was too good to pass up.