I have just downloaded newchapter and the Wiggle Power choices seem to be just what we were after - 3 settings, with high finding great points but not leaving a scrap to wiggle sidechains to get a decimal.
Rebuild on high was throwing 'no valid rebuild found' on several 3seg DRW rebuilds, which made them quick to get thru, also found more points when it was able to rebuild.

So it would seem that scripts will not be affected, just choose your power settings?

As timo says the top part of the behaviour box does not show up on a white background, which was a bit unnerving.