best optics for cree stars?

[Marsupial]

I got some cree Q5 premium stars

see
http://www.dealextreme.com/details.dx/sku.2394
or
http://forums.thecustomsabershop.com/showthread.php?t=2834
for details on those.

Anyway, I'm wanting what are the good solutions for optics over those. Some said something about K2 holder and optics... but nothing definitive.

anyone tried various optics to compare results?

[Marsupial]

nobody????

[xwingband]

There should be a lot out there. I haven't dealt with Cree's since the Seoul's are identical to Luxeons.

I saw a beautiful reflector for Cree's made by Fraen but it was via a german site. Carclo makes holders to use the same lens we use normally, but it's a different height I think...