Sorry I have not been able to set up and do more testing, but will do ASAP.
As I have the CP2 electronics, the main driver I have been testing is the second on your list. After desperation, I also tried the experimental driver, but I believe this one was meant for the newer cp3 units, after reading the instructions on this driver.
Regarding the specifics of you are asking me to do, I have some doubts:
"Can you try out each of them? You can initially sync the mount in plain daylight (without having mounted the telescope) setting it at HA = 18 hours and DEC = 0 (with its setting circles).
***you mean connect driver, unpark (?), setting at HA (???)=18h ... sorry I do not get it !
Then use kstars and sync it to AZ = 90 degree and Alt = 0 degeree. Then use kstars to move and park it.
***also, lots of douts. Do you mean move manually the mount to that position, then sync "manually" (tell the mount where it really is), then park it ? what parking option ?
Please post the log files together with the driver name and your observations."
*** I need to check how to save the logs in Kstars, as I am not familiar
Sorry about all the questions, I am a bit overwhelmed !