No castle link
Just the "blip and trigger" programming.
The battery thing is a bit harder. I'll have to buy a new battery, and there is no LHS, so the esc is the easier test for now. I still struggle to see how it can be the batteries when they work mint wit hthe 19 turn in standard wiring, but don't work with the 19 turn in High-Power wiring.
If I try the GTX next week and have no problem, i'd be fairly sure it's the ESC. Maybe i'll pull the wiring apart and resolder it all again. Repeating the same task hoping for a different result is a sign of insanity, but the GF says i'm driving her nuts going on about this, so it may work!