So far I'm definitely liking "Vapor Being Bored Rev. 1"

FWIW, the shrouds are 19mm thick fans that I removed the giblets from. 25mm required screws that were too long to get 'into' the San Aces

Rev. 2 will be a big step closer toward overkill

Bleeding took time, that's for sure...fortunately it's fully external so I can bleed it, fill it, and position it in any and all orientations until it's just right (basically have to make sure the entire loop is full before you even turn the pump on and then let it work).

I reversed the flow order since I took that picture and it was a lot easier to bleed that time