overheight? what do you mean exactly?
If you are using anything except 18:1 you need to program titan so it accounts for it. look for "gear ratio" when you connect your titan to a computer or your phone. Also if you keep getting voltage error, it might be because you set lipo protection and using 4s instead of 3s in the settings. look for "battery cell" and "battery protection" when you connect to computer.
Note: the programming mini board does not have all programmable settings.
AW Hi-Capa 5.1 X 2
EMG DD MK18 Cerakote
VFC M4 MK18
TM MP5 First gen
TM MP5A5 with swordfish 2004