Holes for pots to small

[sgmypod]

prob wiring....any links to these bourns

[Transcend]

http://www.google.co.uk/#q=bourns+500k+audio+pot&hl=en&prmd=ivns&source=univ&tbm=shop&tbo=u&sa=X&ei=dOwiTuPaIcjQhAfCptixAw&ved=0CEQQrQQ&bav=on.2,or.r_gc.r_pw.&fp=202b3ba16a08836a&biw=1366&bih=643

theres a few suppliers on there

[sgmypod]

ta ahh now know the ones, have seen these when visited a custom guitar builder

[psy]

I've successfully widened holes with a pair of scissors before.  They're not the quickest (or by any means the best) tool for the job, but if they're left closed & rotated in the hole they can do the trick if you've nothing more suitable to hand.