I know Doug really well, he plays in my friday night tournaments about every week.
As far as construction of his cues they are very well constructed. When he was making cues he had a guarantee, if you did not like the hit of his cue, he would buy it back. I have hit with a couple of his cue and I personally like the wood to wood joints better ( but that is my personal preference).
He has had some of the best exotic woods, used in his cues. Any more questions ask me. Matt