I have never used ash to smoke with. I have had several people tell me they have though. There have been links to a few smoke wood species posted here over the years and I have seen ash on a couple of them. I guess I am going to have to break down and try it. I saw a couple of logs of ash the other day I will have to nab them and try it out.
If you take the plunge post back and let us know. I would be interested in your results.