I appreciate all the responses.
It seems like standard-operating-procedure is to beat the heck out of the sheetrock to get slack, and/or backcharge the rocker. Unfortinately, neither of those is an option for me: I don't control pricing, and I'm sure damaging sheetrock will upset the higher-ups.
I take it that WAGO's or wire-nuts are about my only options then, eh?
-John
