Rock,
Are you liking the Crunch Time enough that you do not want to alter the surface?
There are a few options for the condition you are describing. Dry Heat. Crash- drill it like you have your Crunch Time drilled, apply a coat of Delayed reaction and you would be set. I did something similiar to that and it is definately weaker. The Crash even before the delayed reaction was weaker than the Crunch Time. The Crunch Time wants to check up a bit sooner. I applied the delayed reaction to put even more of a gap between them. Another option that you have is the new Hex-plosion. From what I am hearing it is supposed to be weaker than the Crash.
goodluck in your selection,
-EX-
--------------------
Owner/Operator
C-G Pro Shop