I use a modified TransGo SK 200-4R, which is not a performance kit by design. TransGo designs these kits to correct common issues (stuck TV valve, poor line rise, etc).
I add the larger boost valves, drill the feed holes to something similar to what TransGo uses for their Reporgramming kit (which is a performance type kit) and I do mods to the plate for 3rd gear.
The setup I use works great, and in the future I'll probably be using CK's plate because it will save me time on the build and have a nice new plate.
That said,
I've installed th CK kit in several customers builds who bought all their parts from Chris, and have driven them and the CK kit is without a doubt the best kit on the market right now.
The 2nd best is the TransGo Reprogramming Kit.
I use the SK because I am using limited parts from the kit and don't need a kit that includes boost valves since I buy them in bulk.
Jake