Sweet thanks Boat!!!!!! Yeah I've got all the right equipment, I run around 25 pins on route. I had this game LOADED with mods such as the Eli ramp kit, light cycles, flynn sign, arcade etc, so I think all that extra stuff has put some premature stress on it. All those goodies are fine for home use, but the board isn't really built for all the extras.
The WEIRD thing is I went today, tested the 5V and it was perfect at 5.02. I didn't do a thing. Thereafter, I did end up pulling out the board looking for cold solder joints, made sure all the syncs are tight etc. But I can't find any culprits, and as a precaution I have disconnected the mods until I'm sure there are no issues.
So I'll check it again in a week, and if needed, I'll replace the cap and bridge.