Well I was under the impression that everybody with a bowden tube ran dual drive. But it is good to hear otherwise. I needed to print something large and this is the only printer i own big enough so last night I changed the extruder count back to 1, commented out single nozzle and mmu and just like that it compiled. That was all i had to do to convert back to one filament. Then I removed the bowden tube so I could just feed in a filament. I had a jam and ended up changing both the heatbreak and the nozzle. And it has been printing for 15 hours now and looks great..

I know why there is Z banding. It is an interesting problem to correct on this machine but I know why it is and I will make it right. It is very slight and you can barely feel it in the surface with your fingernail but it is there..

Tonight when this is done I will reconnect everything and try again. Thank you guys for saving me some money and more headaches.