Cant come off!
Paul: I have the Tosten in both positions, and have flown with others -- mostly the Infinity. I like the Infinity for looks, but the Tosten had more than enough buttons (as in, lots of them), high quality manufacture, and was lower cost. I recommend it, but suggest you consider the Infinity too, for that ultimate fighter pilot look and feel.
For either of these, you will have to shorten the stick to clear the panel. My panel was made "taller" and extends lower towards my legs, so I probably cut off more raw stick than some others. My stick clears the panel and I still have plenty of length. Resting my hand on my leg, my fingers fall well below the control grip itself. Very good arrangement for me.
I am not sure what DanH is talking about. There is a small hex head bolt that prevents the handle from coming off. I've got 350 hours and soon to be 3 years on my plane with no grip looseness/rocking. The pilot stick (larger diameter tube) does use a "socket" to conform the grip to the stick, but it is not visually obvious or unattractive in any way, and transparent in use.
If you put matching grips (any brand) with multiple functions employed on the co-pilot side, you might want to have an easy disconnect or deactivation. The non-pilot right seater doesn't need them, and you want to reduce the likelihood of inadvertent button pushes that deactivate the autopilot or engage "transmit" or trim function. I used a mechanical disconnect to solve the problem, but since then Vertical Power has a software function that accomplishes this. I didn't try in on my VP200 since I had used a different method. That might be useful to you if you are using VP hardware.
FYI: The Tosten guy is an RV7 owner (and builder, I think).