MakersLED Heatsinks

[Enigma]

Is anyone using these heatsinks?

http://www.ledgroupbuy.com/makersled...ssional-grade/

They look really sweet.

I'm going to need additional lighting when my 40B moves into the 72x24x18 that I'm going to have built. I've now got two Sols, but I'll need a couple more fixtures. I thought I might add two Vega, but these heatsinks look so polished that I might do DIY instead.

I would save money, but not a whole lot.

Can anyone comment on the MakersLED heatsinks? Photos of your builds?