I've altered the single jet slightly, reduced it's diameter from 7.5mm to 5mm and brought it closer to the core (3mm away)
Temps did improve, by 2 degrees (load), but it's still lagging behind the multiple jet version, also I seem to have killed my secondary ram stick (won't boot with it in) will look into that later.
I'll make a new block over the weekend with a grid pattern of jets over the core, and more even and flow friendly outlets, see how that goes.
oops forgot pics;
