I haven't called RTI yet but that typically gets me nowhere. No disrespect there but that has been my experience over the past year. I do have an RM433 with a T1-B I should have thought to try but haven't yet. I will tomorrow. That will tell me if its a zigbee problem. I have experienced the same thing with zigbee. Commands continuing after the button is released, latency issues, etc. I had a customer blow a set of Totem Arros because the volume went up like a rocket. I like the two way but miss the reliability of 433. It also misses half the time if you pick up the remote and press a button before a link to the antenna is established. Let's hope that our customers don't get too quick with their remote! Are you saying RTI is releasing dual models soon? That would be great because you could do 433 today without feeling like you have not given the customer an upgrade path. I still have a conscience!