ORIGINAL: JollyPopper
Tom C: By "bigger battery" do you mean going 6 volt or do you mean using same voltage cells but bigger physically, like C cells instead of AA size? It's kind of an intriguing thought just to upsize battery size rather than add useless weight.
Max
Max, I was referring to going from, say, a 500 ma battery, to a 1300ma battery, at 4.8 volts. I think they a sub-C cells.
By using them in this size model, you gain useful weight, and will seldom run out of battery during a full day of flying.
I suggest trying this first. Then test the balance. You never know, it may be enough. If not, then relocate the servos.
In the end, you may still need to add nose weight, but it won't be nearly as much, after making these changes.