Same with me - getting better temp control without the CyberQ. With the CyberQ, I was overshooting the temps. It is all that i was using at first. Now I just use it as a remote temp sensor. I used the heck out of it when I had a WSM but not so much anymore.
When using the CyberQ, I throttled it down by closing the tamper half way. That seemed to help.
What I want is the SmoBot if they ever come out with a version for the summit. Instead of a fan, it uses a servo that opens and closes the top vent (a "robotic damper").