I too use a planer for cabinet work, and try to run the same species into the dust collection system then save those chips for the smoker. Recently working with Florida cherry. Not the same as fruit cherry from up north, but is pretty good. I use blackjack oak, red oak, pecan etc. from native trees, bust them up with the chain saw and log splitter, then cut "pucks" with the band saw. Still experimenting with best way to smoke with the chips. Hard to control flare up. Recently converted my old Brinkman offset to propane, so am working with that. Now that summer is gone, will be able to get more involved.