PCM Diagnostics & Tuning - Crane Cams/Vinci Performance Tuner vs Unichip Piggy-back ECU

I've heard great feedbacks about both the Crane Cams/Vinci Powermaxx Tuner and the Unichip Piggy-back. I'd like to know from some of you who has either one of these products your positive or negative feedbacks. Also which will work better with the Patriot Performance Stage 2 LS6 heads with a 59cc combustion chamber and Patriot Performance Camshaft 226/226 that has a Valve Lift spec of .585 in. Intake/.585 in. Exhaust with 112 lobe separation angle?

don't know anything about the unichip. i've used the vinci tuner on both of my cars. used it to tune the wife's car when it had heads, then later on when i added a cam.

http://www.stealthram.comvhptuner.htm

piggyback on a LSx pcm, is stupid.

We can tune these cars correct, with full control of these pcms, get a programmer that reflashes the factory pcm.

Ryan