I've been looking at CH grips as well, and traded e-mails with Kevin about them 2-3 weeks ago. I sent a follow-on question last week and have not heard back either, so he may be having server issues or maybe he's out flying his RV on vacation.
Kevin was very responsive, and he sent me a sample grip (actually a full CH-8 with wires attached). Gave me a chance to try it out in the hangar, though after the panel interference discussion above, I need to take it back out and double check that before I send it back to him and place an order.
On that issue, anyone know if there is a limit to how much we can cut down the control stick to install the grip?
Back to CH and Kevin...he still has the -2, -4 and -8 as described in the posts above. Before he sent me the sample, I asked him about pics of the front trigger and button, and he said he was going to update the website with a pic of them. In the meantime, just to give you some observations, I'll pass that the grip feels great in either hand, and the trigger rides comfortably under your index finger, yet doesn't seem to be prone to inadvertant pressing. The button under it is small (about 1/8th inch diameter) and somewhat flush to the stick, and doesn't get in the way or feel like it would be prone to mistaken pushing either. I'm thinking about using it for an AP disconnect and the trigger for a PTT. The other buttons are just as they appear on his website.
Along with the sample, Kevin sent me a wiring diagram (all with no shipping charge!). On it, his number is listed as (760) 598-2518, if you want to give him a holler. Seems like a great guy!
Best of luck!
Cheers,
Bob Mills
"Rocket" RV-6
N600SS
4SD