Hi Blueangle, Your Hobbico 40 is a fine trainer, but----- trainers were never ment to do lighting fast rolls. However, most trainers have a lot of yaw/roll coupling (a fancy way of saying that when you deflect the rudder the model will roll in the same direction). If this is true with your Select 40 (and I suspect it is) then you should be able to increase your roll rate by using both your rudder and ailerons together. For instance, if you want to roll left, just push the rudder and the ailerons to the left. Once you get used to this arrangement try momentarily bumping the elevator stick towards the top of the transmitter just as the moded reaches inverted. It will bump the nose up and help to keep you "on line" as you finish your roll.