My flash cart works nice but it is a bit rusty on getting/keeping a good connection to my GBA's slot. I use rubbing alcohol from time to time to improve it but it will need cleaning again after a few months. This causes problems to start the cart or if I bump it when it's on it'll freeze. What's a good way to clean it? Can I use electronic contact cleaner on the pins? I tried cleaning out the GBA slot with alcohol and Qtips but there's still gunk in there too that probably contributes to a bad connection. Anyone know any good way to clean out a GBA slot too?