Jim Baxter
The pin in my cue is a 3/8 11, this is the same pin used for Southwest and Omen to name just a few. McDermott uses a 3/8 10 pin. The brown material used at the joint, butt cap, ferrule is phenolic. I had this cue set up as a break cue and it is also a conversion.
Jim can build a nice conversion to your specs and it will play solid. I use my break cue to play with as well from time to time. It has a nice hit, good feel, and looks great to boot. I feel that you would be well served by a cue built by Jim and you will like what your money will buy for you. Give it a try, there are far worse cues to buy for the money and you can't go wrong with the customer service you will get to go along with that cue.
I really like mine and it is NOT for sale.