For mediums, I use a 15lb. Wicked B/R/T with very good results.  Pin is just to the right of my ring finger with the cg swung out to the right about 1 inch.  The results were okay with the box finish, but really improved for me when I took it down to 400 grit and then polished it, giving me a nice arc with pop on the back at 14-15 mph.  Slow it down and it will still handle a little more oil than medium, but probably a little too much ball for dry unless you have pretty good speed.