I don't think you're remembering correctly.
But @Sdsparks has demonstrated - twice - that a Warden can work perfectly fine if you don't start slam-firing it until AFTER a "break-in" period of about 50 or so gently-primed shots.
(Personally, I still wouldn't pay retail price for one, given the prices I can find Roughcuts for, but if I had one I'd certainly prefer it to the Deploy)