RE: U-Can-Do 3d 46?
THE 100 IS THE IDEAL WIEGHT SAME AS THE PROTYPE'S OS 70 AND MORE THAN ENOUGH POWER. THE YS 91 OR 110 WEIGH ABOUT 4OZ MORE PLUS AOTHER OZ. OR 2 FOR THE MUFF. I HAVE THE YS110 AND IT IS PEREFECT FOR THE BIG BROTHER BUT NOT ON THE LITTLE ONE.