Sorry for late replies everyone, really busy yesterday.
a_ko - depends on the make you can get an idea here break>
Graham - RE: Clip -on weights - Not on this budget :) I am just truing/aligning the crank webs
motobee - yeah, I am open to trades, shoot me an email. I wouldn't mind donations of dead cranks I haven't seen yet like jawa, yamaha, etc. so I can try and hunt down replacement options.
I will get some more E50s done this weekend.