PTC converters switches hands

I have 3 PTC converters in 3 of my street cars. All work great and flash where they are supposed to.
One 10" 3200 in my Charger.
One 9.5" 4000 in my Roached Runner.
One 9" 5600 in my Challenger.
All have nice tame friendly street cruiser manners until flashed as needed or trans brake launched. Then they react as necessary.