OK JIM,

I mentioned earlier The C.G on th plane before i added any weight was 125mm from the leading edge,


I did as you said as you will see in the pictures below,

I measured back from the leading edge 3 3/4" and drew the lines,inserted hook screw and hang the plane upside down,
It is level (with the 200gramms of weight in it)

I have 100 gramms of lead with the battery pack witch is on the top of the fuel tank,and the other 100 gramms lead melted and formed in the engine cowl as in pictures.

Krammer