Enterprise
150cc
I run the rudder servo in the tail on a push pull. Balanced fine with canisters. Batteries are on trays by the gas tank.
[MENTION=3]GYRO[/MENTION], I'm assuming you know about the stock prop hub bolts being weak, but mentioning it just in case.
Don't use the stock prop hub bolts on the hub! @LimitlessAero will agree, I'm sure.