I dunno why they do it either,
theres a lot of why's in amoungst the EQ6 hahahaha.
I used to set mine with the setting circles but after i figured that they where moving thats why i used the level to level it out then just put physical markings between the two parts. I have always got my home position like that and it is reliable!
As Bojan said when you release the clutches or the mount turns off, thats it you have to start from scratch again, this is why i do not use the EQ6Dir because if your lappy turns off so does the mount. At least with the hand paddle the mount stays on and happy!
I think for every new EQ6 you should pull them down and make sure everything is right, as they are a cheaply made GEM its also good to learn how to do it so that if something goes astray you know exactly what to do, this is invaluable when your 400km from anywhere and something skips a beat.!
In my tool box for this very reason i have everything needed to pull down the mount and completely regrease it, everything to completely dismantle the 10" and put it back together and perfectly align it. I think its just good practice
