Anybody ever heard of these coils? It looks like somebody figured out how the bigfoot coil works and made their own knockoff. Link: http://pinnacledesignnc.com/ They have been selling on ebay also. I'd be curious if anybody has one and if they could post their own experience with it. Ps. I am in no way affiliated with them, I'm just looking for some feedback because the bigfoot coil is so hard to get a hold of.