You never mentioned glow plug. I'm assuming either YS#4 or OS-F. The engine is looking for HEAT. At your altitude (just like mine) you can do one of the following: Increase nitro to 30%(use 30% heli fuel), or try pulling the element up out of the plug about 1/32" with the tip of an exacto #11 blade. It will make the plug run hotter. Hooking up the starting battery should have been the clue.

You really haven't run much fuel through this thing, I would suggest at least a couple more tanks through it at a slightly rich full throttle setting without trying to set any of the other adjustments.

Reset the valves to .003" just for drill.