I ordered this farkle in the dead of winter and just installed it today.
It took a total of 10 minutes to do.
Pulled the throttlemiester, and with the help of my daughter and the air compressor had the grip off in no time.
Previously I had done the barbarian mod, but have yet to invest in a PC-III. All in all I didn't find the throttle abruptness to be nearly as bad as what a lot of people whine about.
Hence I don't feel a big difference with the G2 throttle sleeve. Perhaps it's a little better, a little smoother. Is it worth the $50 bucks? I don't know yet. I'll have to really go out and hammer some twisties to see if it's really much better.
It's nice to know you have a nice aluminum throttle thingy as opposed to plastic

and I think my throttle is smoother too in generally. I didn't grease, just used what was left from the factory part.
But I'd have to say, I'm not overly convinced it made a big difference yet.
-MD