Good trim controllers for trimming?

[Voyager]

I've already got a CH HOTAS: Fighterstick, Pro-Throttle, and Pro-pedals. I'm looking for a unit for fine control of 3 axis trim.

For context, I mostly fly the P-47, and I prefer to do the long historical type missions, where you spend a fair amount of time cruising to the target in fast time. Having the trim set up right ends up having a big impact on how much of your effort goes into keeping the plane upright. On top of that, if/when you get into a fight, you really need to re-trim to fit the speed and attitude you're aiming for, which isn't really cruise. I'd sort of like to be able to experiment with trim on landings, but that already seems to require six arms. Well, four, but you know what I mean.