This is only based off of what I personally have observed in these parts. So this is in absolutely no way expert analysis.
I've noticed that the few times that we can actually do "well enough" and get close to maximizing our potential with low CAPE/high shear convective events is whenever we have a trough that tilts negative to our west with a strengthening surface low moving up the Appalachian Mountains. April 6, 2017 comes to mind. Also December 21, 2018 which probably no one remembers because the storms from this "event" only produced some brief 40-50+mph wind gusts and small hail from NVA into north/central MD and was more localized than this mornings event... but it was still at least something for late Dec and the wind profiles were weaker for that "event". This is assuming that CAD erodes quickly enough of course.
I know... this is a very small sample size I'm sure there might be a few that I didn't mention. People on here who know more than me, what's your take?