Ok cool.
I have never gotten around to taking my Tc320 off and testing my ST220.
I did do it in the reverse order with the same sys only difference was the two radiators.
I wouldnt figure there would be much difference anyway.

Pretty much anyone running a cpu and gpu on a 220 radiator or larger, one wouldnt see a very big drop in temps.

Now of course if one ran an SLI/CrossFire set-up plus a cpu then i could see a 220 style or smaller radiator posing problems.

Anyway thanks always for the test and feedback.