How about 1080ti SLI with a single D5, 2x 360s and a 480 and the same with two 980 Tis and several other SLI variations over the almost 20 years now of watercooling.
The water spending longer in the waterblocks separately is almost guaranteed to be a net gain if the flow isn't abysmal and you...
I meant more like why spend $500 on a board unless you really need the features on it. I've done the same stupid things myself but I luckily got over it. I've done some LN2 and TEC cooling and I've done some obscenely overstuffed builds that might have slightly justified the highest end boards...
If you didn't have a VERY specific purpose then you wasted $500 for sure. WTF were you thinking exactly if you were going to be able to regret that kind of purchase?
Plenty of us get it. I assume I'm not the only one in here to lap a CPU and corresponding waterblock or similar into compliance but as has already been mentioned most coolers are machined to match the convex nature of most CPU lids these days and if you don't flatten both then you may well have...
I don't think a blurry reflection shot and a screenshot hiding the individual core temps is going to make you any more enthusiastic supporters than your sleazy car salesman eBay ad did.