I'm Pucked and I love it
ok, I love my Power Puck, but my Clutch does not.
The vibration I have read about in the previous posts is gear clash in the transmition caused from lugging the engine. The Puck is very aggressive in the lower rpm's so you have to be careful not to lug the engine. I try to keep it above 1800 rpm when loaded. with my current BOMB's I have hit 1150F on the pyro, keep in mind that this was on a 80F day and humidity was very high. Normally I max out at 1000 before I back off, there is more power available, but I would rather save the drivetrain and what is left of my clutch. Normal driving is great, I can pass traffic at will, and have GOBBS of TQ left over for fun.
Yes there is smoke.

If I let the turbo die, I can kill thousnads of mosquitoes. Once the turbo comes up, the smoke goes away the truck rockets forward like a bat out of he11 and if I am not careful my clutch can go up in smoke. There is a very healthy hit in the powerband at 1900 rpm that can spin the tires if traction is not good, I just love it (I have had this happen in 6th gear on wet pavement when the clutch was grabbier. )
Towing it is great 17000# and never had to downshift due to lack of power.
I have given MikeR, Bob V, and Vaughn MacKenzie rides in my truck and they were all very impressed, Vaughn even thinks it may be faster than his two wheel drive ETH with DD-2's... ... once I have a new clutch we will have to do a little highway testing to make sure
-Cliff