Since my last post I have been riding the bike and just throwing it on the battery tender at night, as I’ve got a pregnant wife at the moment and not a lot of time to tinker. I had resistance tested the fused wire between the regulator and battery, and it had enough resistance to fool the multimeter so I never thought twice about it. I rewired the whole bike yesterday, and decided to cut the fuse out and run the white wire straight to my solenoid as it was close enough to do so. I reused the fused wire between my lights and key switch as an experiment, and suddenly I’ve got 14.1v at 4k rpm but no headlights. 2 years, 3 batteries, 3 alternators and 3 reg/rectifiers later, the issue turned out to be a $5 inline fuse holder. I’ll consider this an expensive lesson. At least I have plenty of back up charging components, I appreciate the advice fellas!