ALL FIXED. i switched those 2 wires for each turn signal and lo and behold, the bulb sockets no longer get "hot", and thus, the turn signal housings no longer get "hot".
quite a lot of BS for such a small and simple problem!
Thanks for the help everyone!
1978 BMW R80/7
"all we need is time and courage." - Renner
"A lightened flywheel on your bike is like me getting into Spandex and putting on track shoes to walk the dog." - M