For the Viper, since the chute size is a little diameter limited, and you have lots of extra body tube weight for those engine tubes, maybe consider rigging up an external shroud line that suspends the body in a horizontal or slightly nose up horizontal orientation. This will add more body drag in combination with the chute during the recovery descent and look really cool like a Viper coming in for a hot landing. Reinforce a spot on the dorsal fin for example, and rig up a line near or just ahead of the cg of the body alone with a spent engine casing loaded so the nose points up just a bit.
horizontal recovery works on other small dia rockets, but looks cooler when you have a winged rocket with a canopy on top and landing gear on the bottom that just wants to land that way in the first place.