I found a workaround for my Sky-Hub Bluetooth Digital Setting Circles setup for my 12" dob on a Watch House Eq. Platform modified for very accurate RA tracking (a star stays almost dead centred, with small variations of 2-3 arc-minutes, for the whole hour run).
Sky-Hub is always set as Basic Encoder System in Scope Type
1). I polar align the Eq. Platform (I can achieve aprox 0,2 degrees of precision - more accuracy if I drift align);
2). I make sure the DSC system is disconnected from SkySafari;
3). I tilt the platform in the starting position with tracking turned off;
4). I go to Settings and set Mount Type as Alt-Az. Push-To
5). I select Scope -> Connect;
6). I do a multiple star alignment on different parts of the sky from which I get about 10-20 arc-minutes of accuracy (flexing in the mount and optics won't allow for more). I only have to do this step once;
7). I select Scope -> Disconnect;
8). I go to Settings and set Mount Type as Alt-Az. Push-To on Equ. Platform;
9). I select Scope -> Connect and as soon as I hear the connection confirmation sound I start the tracking on my platform. SkySafari uses my previous alignment made in non-Eq platform mode even if I disconnected from the DSC;
10). When tracking reaches the end position I select Scope -> Disconnect and repeat steps 3-4-5-7-8-9-10 skipping step 6 until the end of the night and my initial alignment is still available unless SkySafari crashes (which sometimes happens, case in which I have to start from step 2 - meaning I have to redo the multiple star alignment).
Do you think it's possible to change the way Alt-Az.Push-To on Equ. Platform works in order to skip all the disconnecting, changing mount type and reconnecting the scope in order to use the initial alignment? I've read 2 other threads around here that touch this issue but found only the method above to work.
It would be nice to have a button in the Scope menu on the main screen (besides Connect/Disconnect, Push-To, Lock) that we can push to tell the system the platform has been re-set and it's ready for another run. Something like "Start Tracking" which should be pressed as soon as we turn on the tracking of the platform.