Sporting clays is a refreshing change from the predictability of skeet and the limited variability that the game of trap offers (44 degrees side to side, 5 set positions, 8-12 foot throw height, 16 yd line, etc).
Lipomas are benign fatty growths that do not grow quickly, but of course they must grow from somewhere, so they do grow. If a lipoma is small, does not show without touching it, and is not painful, I recommend generally leaving it alone.
Lipomas are benign aggregates of slowly growing adipocytes. These tumors usually occur on the trunk and extremities but can occur anywhere on the body. Solitary lesions are the most common, but multiple lesions can occur, with higher frequency in young males. A lipoma is shown in the image below.