Wrong person, I have never tried PC fans.

A very very very long time ago, I ran motorbike fans on the back of the rad, but about 4-5 years ago, decided that I had had enough and stripped it all out and did it properly and is the set-up I have now. The car is spot-on for cooling and has been ever since.

I would again emphasise the above. You have to do ALL of those things and don't skimp because you think your rad is a good one, get it recored anyway. You won't regret it.