The Hotchkis bars are a pretty subtle change over the Z06 bars. It's noticable, but subtle.
I've been from Z51 to Z06, to T1 and Hotchkis, and the Hotchkis are the ones that are on my car now, to stay. If I need a bit more bar at some point, I might put a T1 bar on the rear, but that's about it.
here's my brief writeup/impressions:
http://www.jakelatham.com/c5/misc/faq.shtml#2-3
-Jake
