With the earlier roll the Executioner core offers the Charcoal Ex will definitely replace the Super Power. It has a 600 grit reactive resin cover, and will work well on sport or tourny patterns. It is also decent on house patterns but you will more oil on the outside to control it rather than the usual 10-10 wet/dry.
The Inferno also offers a nice midlane roll as well but with it being a pearl it will get alot more length down the lane. The cover was designed to limit over under issues on wet/dry and spotty patterns. You can scotchbrite the polish off of the Inferno for better traction in oil, but it will still squirt up in some carrydown.
If your son wants a real heavy oiler then go with the Charcoal, if he wants a ball he can use on a variety of conditions then go with the Inferno. Both pieces of equipment hit hard and carry well.
Worse comes to worse he can always go with a strongly drilled Crimson. My Crimson is drilled 5x4 and I can play just about every condition with it.
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In the old days people used to cut wood with axes.....................now and days...............they just have Executioners do it for them!
Pin_Krusher IS a serious threat to modern day bowling wood as we know it today.