Novaflier,that is right the further forward the weight the less you will need.I would suggest a prop
washer weight,it goes in front of the prop but is thicker and I believe they come anywhere between 1/2 ounce to 1 1/2 ounces.that is as far forward as I think you could get.
It takes 1/5 the weight to fix nose heavy.The tail is longer and gives more leverage,you can go further out by the tail weight which requires less weight.Check out great planes web site for the prop weight I think there $6.00.