Rick - I had the idea that the new Martin "Bluegrass" strings WERE split already. I could swear that I have some at home that are mediums on the bottom and lights on the top. I think Elixer makes a set like that too.

And Mark - sorry about the loss of your D-18. Mine is a 1967 and I'll never part with it so I "feel your pain". If you'ld like to play mine you can. Anytime. Just send me three round trip tickets and a Carlton case and the whole family will be on the next plane.