I derestricted about two weeks ago and I have to say there is very little difference. When the bike is undeniably warmed up, there is some noticeable performance improvement (37mph?) (stock speedo) (yeah yeah, I know), but it takes plenty long to reach that point as the morning commute temperature is in the 50's.
I'm going to order some jet sizes and pick up a Uni filter. I'll update this after that is done.
Think of this as the Cheap Bastard's LX Performance Forum.