I'm still riding the inForm RL on my Litespeed (the more "aggressive" of my two road bikes--i.e. more saddle to bar drop than the other). I've gone back and forth between the 140 and the 150, more out of curiosity than anything else. I can't say that I've noticed much difference between the two in terms of comfort, so I think I'm going to keep the 150 and call it good. (The LBS that I bought it from has been great at letting me switch out the saddles on a whim.)

The saddle on my other road bike has a cut-out, but I find that the channel/groove in the inForm RL gives my bits all the room they need. And, I just like the look of it, to be honest.

To be fair, it seems like most of the complaints/concerns about this saddle that I've read involve chafing at the sides. That's not a problem I've encountered with any of the saddles I've tried, so I can't comment on that. (Hrm...except the Terry Butterfly that came on my Litespeed. The nose on that was just a bit too beefy for me, and I thought it had the potential for chafing and annoyance on longer rides, so I replaced it pretty quickly.)