Had Nick install my Penske shock last Friday. Everything folks have said is true about the improved ride and handling of the bike. Nick is big on customer satisfaction as I did not pull out of his drive until we were both happy with the bikes set up. Nick is running a special on Penske shocks until the end of the month. I don't know what guys paid during the group buy and I can't say what I paid as those details should be left to Nick. I will say I was pleased with the price and personal attention to detail I received from Nick. If you live within a few hours of him I strongly suggest you have him do the install and set up your bike. You won't be disappointed. I will be doing the front end as soon as funds permit. ::012:: Contact Nick at Stoltec Moto for details 610-888-1280