Easiest-Most Difficult PCP's to Work On?

that sweet 16 .... what a sloppy mess ! a thousand bucks of trash , and that was about 15 or so years ago, i gave mine away for free soon after i got it ! and special thanks to Scott "motorhead" for guidance on my BSA gold star se , couldent find or figure out how it came apart . i was giving up " Scott got me through !!! a thanks to Scott !!!
 
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