Thanks yes, when ive taken psu's apart, i find they are often directly soldered, or use smaller daugher boards...but this is only prototype...just has to work, doesnt matter how.
I may footprint a 72 way, but just use three 12 ways at end , middle and other end, say...and to be sure, i will solder the three sockets in with the header(s) already in them...to get round solder hole size tolerance problems.
What do you think?
Sorry but i dont have time on this prototype for proper fixation.
Also, please may i ask, can anyone think of better headers/sockets for this? (more stable, easier to dis-insert etc)