Some of what I am sharing here is lilely new to you. I have been shooting by these two methods and have been careful not to show it on video through the years. Only a few have I shared with bit it is time now to Let the Hair go with the Hide. Centrifugal force is easy to make work for you. Stacking is good but requires more time in to be efficient ultimately Stacking is not as quick because it is not as efficient. I have Stacked 9 marbles and the 10 is ready to go. Have spent lots of time getting this method down. Best in Stacking is 2 and 1 ready to go.