This image of Jupiter is much better than I have ever got!
But I don't understand, do you really expo Jupiter for 4 secs? I use 15 ms expoes for Jupiter.

Plate solving is not difficult, Jasem has great tutorials about that: www.youtube.com/watch?v=lyRGsi2BG7g
Just be sure to set your telescope focal length of your scope.
The basic principle is that it tells the driver where the scope is pointing at, updating it's coordinates in the driver. Of course that mean that the crosshair also updated in Kstars. But it actuially updates the driver. Essentially the same operation you yuse for SYNC. After that what happens in the AltAzMount driver is that as it is tracking and now knows it is not pointing to the target, it will slew to the target (center Vega). As the AltAzSimple driver stores the Alt/Az coordinates of the target, it will not slew automatically after solving, but you will see in Kstars that it is not exactly targeted, and you can issue an other GOTO to your target, which will now be much more accurate.

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