Adjustable weight for 208, X-esse too

I just made a couple 300 gram of barrel weights for 208. I'm thinking if I were to drill the lower section that extends to the trigger guard and tap it 9/16 -18, that would drop the weight quite a bit, putting set screws in the hole will increase weight, possibly add lead bbs will add more weight than steel set screws. I can round the bottom to remove more weight. Also I can make it from aluminum which will drop weigh to about half of the 300 gram steel weigh and the tapped hole reduce the weight more. So a light adjustable weight is possible too.
 I'm wondering if there would be any interest in the weigh?? X-esse also.