Grab the skin on his throat
Sorry if I misinterpreted that Doc. I agree that the sides of the neck/face is the place to get a firm hold
once pup has been put down, rolled over and you THEN need to control it's movement to avoid being bitten.
When folks talk about how older dawgs "correct" mischevious pups ... watch the interaction of a female with her pups. Annoying behavior including biting is dealt with quickly and decisively. It invariably incorporates the pup being grabbed by the scruff of the neck and sometimes shaken by a growling or even snarling mother. It's extremely unusual for that mother (or other older dawgs) to correct a pup by grabbing the throat area.
On the other topic Doc ... We're headed back down on July 1st to sign a contract with our home builder and another fella who'll be creating our training/shooting ponds on the 56 acre parcel.