Without having any experience with the new high end Cirrus servos there is no information for me to relate regarding quality or accuracy. That's why I did not reply to your query about using them. I use them for planes that do not greatly benefit from the use of higher end digitals, and for smaller glow powered planes in a throttle application.

I agree with he others that you should go with a known quantity with the current major manufacturers. I'm not even going to begin suggesting which one is best. You will get what you pay for. You pay more for a good "digital" servo over the standard "analog", but the difference is well worth the money, IMO.