The SyRen 10 motor controller came in today and I tested it out on the motor for the dome and it works great!!!
I almost wired the thing wrong from the Vex to the SyRen. The wires from the Vex only uses 2 of the 3 wires going to the SyRen.
The black which is the ground and the white which is the signal. I didn't know it does NOT use the red wire coming from the Vex, But everything is OK. I set the pins and in about 2 minutes I had the motor under control by the Vex Micro. I'll get it mounted into the panel and get the motor in place and give it a try at turning the dome. I will have to recode the Vex software to match the new motor drive.