first thing is what are you using for a smoker? I use my cherry all the time in my smokers. couple things you want seasoned wood, and don't soak it in water, like our fireplaces you want it to burn clean, soaking it makes it impart a bitter flavor from the creosote that is produced, and if there is a lot of it you will get that numbness/tingling on your lips an in your mouth. the greener or wetter the wood the more you get. I have a wood burning smoker, I just burn what ever wood splits I have bark and all in that one, well only fruit wood. In my charcoal one I use 2x2x4" chunks of wood. like what was mention before you don't want white smoke pouring out but rather a slight blue haze.
when I prepare my wood I use my chop saw and take a skim off each end in case there was some chain saw oil. that's it for my stick burner, if I am using my charcoal smoker I use my table saw to rip it into 2 x 2's then chop them into the length I want (usually 4")
my other smoker is a Bradley, so for that one I just open the package and load up the hopper
Steve