I have remote glo drivers fitted to all my aircraft that have inverted engines, fitting a normal glo driver on an inverted motor is dangerous, especially the part where you have to remove the glo driver with the prop spinning.  I have never had any drama with engine lock up and after seeing people trying to remove glo drivers from inverted engines decided that it is simply the safest way to go. Have used them on all sorts of four stroke motors and never had an issue with them. Most of my cowlings are fitted with 4 screws, if I have a problem it takes about 2 minutes to remove the prop, undo the screws and get to the motor.  If the choice has to be made between convenience and safety I will run with the safety method any time.