I just finished my aviomodelli Tango 60"wing span, my first ARF plane, unfortunately it's very tail heavy, I should add about 4 oz in the nose to get a correct balance.
Now the problem is that the model is already quite heavy for the OS 40 La I mounted (6,3 lb) and there is no way I can lighten it up. OK ... 4oz is not that much but I would like to use that weight for something "useful", not just for plain ballast. Any ideas?

thank you
david