Transition period from analogue to glass
I don't think it should take quite as much as 5-10 hours to transtion to a glass enviornment. You can easily reduce transition periods by
1. using software
2. thoroughly reading the manuals
3. back seating
4. sitting in the a/c on te ground and running thorugh drills
It won't take you more than 2-3 hours to become comfortable enough. Scan is easier. Cockpit layout is much less cluttered and buttons/knobs are much easier to reach. Plus all the aircraft will have a uniform layout, as opposed to two different senecas which almost invarable have different nav/com, autopilot etc. equipment inside.