Actually I have only done it on one, a Cox Giles 202 (.46 sized). 50" wing. It came out at 5.5 lbs and it has unlimited vertical and is not taxing any of the components running at 12x8 prop. It peaks at 38Amps. it turns the prop at 10,500RPM, which would not be too bad for a .46 engine. It is a little rocket. I would do it over on any .46 any day. May have to in the near future. I love the fact that you can have a common fleet of batteries to share between the planes you fly. I am also in the process of trying to design a fast electric boat that may use the same battery.
C