On my first flight I had both my RX batteries and ignition batteries strapped to the engine box. I know have my ignition battery next to my fuel tank and my RX batteries strapped to the receiver tray just in front of the rudder servo. I am running a DL 50 and have set up my standoffs so that I have more than a inch of clearance between the cowl and prop.

I have read a lot of different and advanced ways to get your CofG correct on this thread so far bit I just followed Toms method for marking the CofG range on the wingtips and got a friend at the field to help me using our fingers to lift the plane. For the first flights I would really recommend that you set the plane in the forward section of the CofG range and then after that start to adjust as you feel comfortable. I made every CofG change one small step at a time until I got to where it is set know and I have never bothered to remeasure the CofG.

I also only set the throws that Tom recommends as my high rates and set my low rates at half that and something inbetween for my mid rates. I do not fly 3D and have used this plane primarily as an IMAC plane and have since reduced all my rates to even lower, including changing the servo arms to smaller arms. I think my current high rates may even be less than my original low rates.

All these recommendations are only to help you find a starting point. According to some of the top IMAC/F3A pilots it takes +- 100 trimming flights before you can get your plane properly trimmed out, so do not worry about not getting it right on the first go.

Cheers
Pupmeister