Aftermarket headshell leads

I've been considering this upgrade for my turntable. It's a Pioneer PLX-1000 with an Ortofon 2m black. I've been reading some of the aftermarket headahell leads don't come with an already tight fit and that you may have to crimp them onto the cartridge and headshell pins. I'm not sure how comfortable I am attempting that. Anyone have experience they can share? 

Thanks!