Having just bought a set of Fender Classic 60s pickups and a J Retro for my MIM Jazz Deluxe, I was just wondering how hard people have found it to install them? I've done a GCSE in DT, so I know how to solder, but would you recommend doing it myself, or getting some one else to do it for me? I'm a bit wary about going in to a retailer and saying 'can you install these things I haven't actually bought from you.' Thoughts? Cheers.