I own both the Hogue Wood and Hogue Rubber.
Being said that the Hogue Rubber are very nice but the Wood even feel better and a bit smaller,The wood don't cover the backstrap at top like the rubber and the girth of the grip is reduced. See pics.
Here's My Dan Wesson with Wood Hogue


Hogue wood

Hogue Rubber

Deaf Smith have you found the problem inside your 15-2 yet?
I'd still bet it's got a broken trigger return spring?
Good Luck and Buy The Wooden Hogues,You'll be glad you did, I am!!
Dan Wesson