Rev, 1.3 done - still bleeding the loop, but so far I'm very disappointed - to say the least.

MCR220 --> RX360 (less restriction)
GPU serial --> GPU parallel (less restriction)
2xD5 --> 2xDDC (more head)

And what's the result? 205 l/h (previously I've had 200l/h with fully bled loop).

I'm fairly sure it won't get better as it actually started at ~290/h, the more bleeding -> less flow.

So unless I'll see jump to 300l/h tomorrow when I'll finish bleeding (or I''m doing something terribly wrong) - I say the DDCs are much overrated with all the head pressure.

The only good thing about them is they are not as noisy as I thought, just a little, little bit more noise (if you put the ear near them).