Here is an excellent two ball combo.  Both single drills and both in excellent condtion.

15 lb. Roto Grip RSX
Drilled rh.  
Drilled with finger grips and thumb slug
single drill
weight hole on VAL
Pin is slightly above and right of the  ring finger.  Cg is 2 1/2" right of palm line
Pin is out 3 1/2"
Approx. full span:  4 1/2 x 4 3/4
Coverstock is in excellent condition, very few games on this ball

15 lb. Roto Grip Horizon Pearl
Drilled rh.  
Drilled with finger grips and thumb slug
single drill
No weight hole
Pin is above the  ring finger.  Cg is on palm line
Pin is out 2 1/4"
Approx. full span:  4 3/8 x 4 1/2
Coverstock is in excellent condition, very few games on this ball
This ball is an X-blem, 11" pin.  Based upon some ball drillers advice and comments, the ball was flipped over and drilled with the weight block upside down.  It reacts nearly identically to my "normal" drill Horizon Pearl.  Good length and still the hard, angular motion in the back end.

If offering trades:  specifically looking for 15 lb. No Mercy, Toxic, Odessey, or Buzz.  If you have something else of interest, please make an offer, you never know.

Selling price:  $90 shipped

Scott