Well if its, then it is still bad design since it makes no sense and is unnecessary. Same thing goes for the rubber plate being needed for optimal perfromance as Shoggy said, which makes even less sense. The cooler itself pulls at the nuts, there's no reason why the combination between nuts backplate and screws needs to be as tight as testers say it is. Just take a look at the Megahalems mounting system, where the backplate and mounting bracket fit very loosely - a tight fit as with AC's system just isn't needed, the only thing it achieves it making the block harder to mount.

@Shoggy
You guys still made some new G1/8 stuff a year ago and still have a lot of products that are G1/8 (only). That's why I said you're slowly moving away from it, you're almost there, but not yet fully. E.g. if I want board cooling for a RIIE, I will need to use G1/8...

It also might fit the 1/2" OD compressions you guys are selling, but Vapor said that it doesn't fit the commonly used BP/KL 1/2" OD compressions:

Quote Originally Posted by Vapor View Post
EDIT: Those wondering about the compression fittings: it doesn't fit any of the ones I have here (smallest I have are BP and KL 3/8-1/2 and it doesn't fit those)