I have a 16lb Colossus Supreme in excellent shape.  1st drill drilled with no grips or slugs pin is above and right of ring finger cg is stacked below right on the midline.  Mass bias is right of thumb.  Ball has 30-40 games and only has light track wear.  Ball was cleaned after every set.  

Asking 40.00 plus shipping.

Also have a 15lb ble plastic Rhino thrown about 3 times at spares ball is in like new condition.  10.00 plus shipping

Pete