I have a nashville deluxe tele with 5 way switching. Shortly after I got it only the first 3 positions would work, and when I switch it to the back two nothing happens at all. It started working for awhile and then it would act up again. Now it doesn't work at all. Anyone have any ideas or experience with this? I think it is the switch itself, and I have a new one I might try. I haven't ever replaced a switch on a guitar but I have done tons of slodering. Is there anything to look out for besides the obvious?