Fixing Atari 5200 Controllers

[TDIRunner]

My understanding is that Best Electronics http://www.best-electronics-ca.com/ has a fix for the faulty Atari 5200 controllers.  Has anyone tried this yet?  If so, how were the results?  If not, what other methods has anyone tried?  I would prefer to stick with the OEM controllers with replacement parts rather then getting third party controllers.  I have five controllers total, but three of them are faulty.  I've bought from Best Electronics in the past for Jaguar stuff, and I was pretty happy with their service.  I just thought I would check to see if anyone else has tried this before I order anything.

[X68000]

A real easy to fix 5200 controllers is to clean the button contacts on the flex circuit with an eraser, and add self-adhesive copper tape on the rubber button contacts. I fixed mine like this a few years back and they're still working fine.

[TDIRunner]

A real easy to fix 5200 controllers is to clean the button contacts on the flex circuit with an eraser, and add self-adhesive copper tape on the rubber button contacts. I fixed mine like this a few years back and they're still working fine.

Thanks for the reply.  I'll look into that.  Where you able to find self-adhesive copper tape in a local hardware store, or did you have to order it online?