I usually get branches etc... we have knocked off or trees we doze over at the ranch about a year or so after they are dead and dried. the best wood to me is old mesquite fence posts that are rock hard! That "heart" wood as we refer to it will burn forever and stays hot. I have a huge stack from some old pens that were torn down and we cut it up into chunks for cookin with,
I used to know a fellow from Kingsville that told me that you don't have to cut and haul all that wood with you at all. All you need to do is get you big coffee cans full of the mesquite beans. He said get the fire going good and hot with another wood, and then just toss in a handfull of the beans every now and then. The green ones last longer in the fire and put out the same flavor in the meat. Never tried it, but seemed to make sense to me.
For me, the best cure is to talk to the ones that use it the most. The locals that cook with it everyday can tell you what to do. I like to use only the coals. never the smoke. Try that with trout filets, real butter and Tony's. Simple yet very very good!
I've never heard of Curing wood. Like one poster said above. Every year a bunch of Mesquites fall down or what not and we just get the tractor and drag the entire tree to a location we have. Then after a year or more we just cut them down.
And yes, dried out old mesquite fence post are awesome!! and yes they burn hot.
Some of the best bar-b-queing wood is mesquite (and believe it or not) huisache wood that seems like it almost almost petrified. It burns long and hot. And as far as huisache, when it is aged, cut and burning, you cannot tell the difference in the way it looks, burns or smells.