I thought I read that the skyview has a 25 turn pot. With looking real close I believe the screw is turning.
On the second part of my question. I hold the trim switch for the direction I want. It stops about a third way through, then I release switch and push again and it resumes travel.
And too add:
1) The trim controller has a 5 second timeout. This prevents trim run-away if a switch were to fail and stick.
2) If the SkyView system fails in flight, the trim speed will default to the 0 IAS condition, not "full speed". The only time it would be full speed is if SkyView never booted and the module didn't get configured with the settings in SkyView.