At the moment, I have an automated sugar cane farm with pistons. It works beautifully, except for one problem. Often times, sugar cane pieces would get stuck onto the blocks the sugar cane is growing on, so it doesn't fall in the water. I use the ItemStacker plugin to reduce lag, and often times this could mean 5-6 pieces of sugar cane per farm being stuck.
Does anyone have any tips for this problem?
Heres a screenshot to help out: