Anyone used these clutches?

I'm on the hunt for a good clutch kit that will take around the 500bhp mark (not sure what torque i should be expecting at that bhp), and i came across these.
Anyone used them before? I've currently got a OS Giken, but we'll not go there, that wont be going in!
http://www.clutchcityonline.com/spec/nissan_pulsarGTi.htm

Probably >
CC or Helix or ACT ceramic paddles sprung to help save shaft & box in general.
I like the CC clutches (4puk double sprung) but ACT & Helix are common ones for GTiR.
Ask bob what he recommends & he may even have a decent one in stock.
Good thing is you should get decent amount for the giken to halp balance costs a bit :-S

Well I've got 2 of them haha, so if anyone's interested......

Get them on sale on the forum & ebay, if you can ship EU Oz US Canada you probably get decent reward.

Minimum post count of 50 before you can sell stuff on site ....

I always phone Bob 1st to get the go-ahead seeing as i've not hit 50 yet

Although im now at 27

I have a competition stage 4 6 paddle clutch in mine, rated to 500/500 bhp/tourqe, very agressive but does its job well, just don't want to get stuck in traffic with it.....

What's wrong with the giken?

Change of plan

And cheers Pete, I'll look that one up

One of the best clutches I've used for big power but good clamping without being overly aggressive on boxes is the exedy single plate basket clutch / flywheel combos