The slam feature is difficult to use. grabbing the slam is easy and great. But once you go to slam the stack by releaseing the slammer, it can be hard. with missing the stack even tho it seems it was lined up and aimed right at the stack. it also feels like if you just let the slammer go or if you try to line up the edge of the slammer with the stack the flip result is random, when lining up the edge in theory it should result in more flipped kogs versus just dropping it anywhere on the stack.