Can’t stop my head from dipping.

I would like for you to ultimately get to that point, because when we consciously try to manipulate things with the hands/arms it becomes difficult to precisely repeat the movements swing after swing. This is why preestablishing the connections at setup and having a good grip are so critical. That allows the arms, hands, and club to simply respond on autopilot to the actions of the big muscles.

Having said that, it is okay to "feel" certain motions in the hands/arms while learning a particular swing component - such as getting the lead arm off the chest in the downswing - just try to avoid getting overly active with them.

Ultimately, once everything is properly ingrained you might be able to incorporate certain feels - for example, adding power to the strike with the trail hand - without compromising the sequencing of the overall motion.