LTD voltage drop

[roondog]

Stator changed, reg/rect changed, all grounds check good. When started, charging works great, dumps overload. However, after a couple days, she's about .02 volts down, hard to start. Granted, the map and whatever else is always going but I wouldn't think that stuff would cause that draw. Where might be a best place for a kill ALL systems switch? I can't be the only one with this issue.
I read somewhere there was a new kind of replacement wiring harness that cleaned up alot of stray, battery eating gremlins.

Any ideas?

My rides: 85 LTD, Another 85 LTD (For Sale), 82 GL1100 custom (For Sale), 89 GL1500, & a 2016 FLTRUSE