Hey Danny,

I think the gimbal vs ball-head is more about the size/weight of the lens/camera combination and less about the type of benefit you are talking about. I am not saying that you wouldn't benefit at all from a gimbal. At least my understanding, a gimbal changes the center point of the weight from being at the very pinnacle/top of a tripod to being a bit lower and closer to the base. That position is inherently more stable. That position of great stability is most critical so that you lens doesn't flop to the side and everything falls over resulting in the worst day of photography ever. But it probably would have a slight effect also on your stability.

Of course, a gimbal also does not allow for "roll" or side to side motion, where a ball head could roll or flop to the side. But that lack of "roll" would minimize movement in a direction, which would also help your stability. So, lower position closer to center, lack of roll, maybe another stop? Maybe down to 1/20-1/30 as a quick guess? BTW, while I have used gimbals, mine is on backorder so I do not have it yet. But hopefully in a week or so, I'll be able to test this for you if you are trying to make a decision.

-Brant