If you are mounting it sideways i will not cause a problem. I would put about 1 1/2 or 1 3/4 peices of lead (about 3/8 or 7/16 of an ounce) on the right wingtip and it will be perfect. Plus you can cut about a 3x3" piece of white covering and tack and shrink it over the weight. That will definately secure it plus it covers up those ugly grey weights.