Yeah you mean the short-barreled PzIVF1, I admit it drops like a penguin shot off with a catapult.
Yeah that's probably the one. I'm not really good with the different tank variant names like Ausf. H and F1. But i'm guessing the short barrel means bigger ammo that drops faster.
Essentially, the Panzer4 early types, and the Pz3N, were using glorified mortars. Their purpose was to drop large HE shells on enemy positions, and not to engage enemy tanks. Unfortunately, much like the Sherman in american service, this was not to be for the Panzer4, although it worked well enough for the Panzer3s, as they worked with Tiger tanks.