Tony Egan you are funny. I like that. Confusing Dispenser.
I'll venture that a condenser is fantastic for 35mm and a diffuser is the one to beat for 4x5.
Since a color head is sort of a diffuser, you have a compromise on your hands. If dialing in the contrast filtration gets you where you want to go ... great.
But some of the color heads (my little Durst for one) can't go above 100 (1.0 in density terms) for any one color. And the Grade 4 filter is way up in Magenta.
So you might still require a drawer or under the lens filter to hit those extreme graphic effects.
You might as well keep the condensers clean and carefully stowed away. You'll need them one day.