LuK vs Southbend experiences from both sides please

[boondock]

First let me say I do not want to start a pissing match. I want to get right clutch for my truck and my needs.

First my truck is in my sig, I plan on adding a aftermarket single turbo as well as big injectors within a year and I will probally be done with it after that. So targeted hp is 450+ range or so. The most I will tow is 4000 pounds or so and that will only be a couple time a month. I do race people however and that is where I am torn. Carolina clutch said the cerametallic doesn't like to slip. Right now I rev it to 1800-2000 and slip the clutch when racing.

I am leaning the towards the Luk right now for several reasons. It is rated for more power hp and torque, haven't heard of any complaints, NEW flywheel, and lower price.
The Luk is a little less proven it seems as it is a newer clutch. He has the cerametallic as the half and half organic type I think. Whcih he sells to guys that back up heavy loads and need to slip the clutch. He hasn't heard how either really do slipping the clutch in a racing situation. What have you experienced with yours?

SB is proven and the customer service is great I hear, but you don't get a new flywheel and it is over $200 more. How do these clutches do when racing?

Is that all I need to upgrade? Input shafts and the rest will be ok with the hp I am shooting for? Both re 13", the South Bend I was rocommened to it the 024 I think.

Help I need to get one soon as I want more power. Need to slide that plate!!