1. All worked very well indeed  .. NOTAM warnings are particularly good (missed a 3000' model aero one right near home field & got warning. Great). 
2. I find the Heading Up display less responsive than I am used to with Garmin or PFMS. With them map constantly adjusts so that direction of travel is "straight up". With SD you have to be about 15 degrees from last redraw to trigger a change. I realise that there is a line from the plane icon and you can ensure its aligned to your track. But for me at least its less intuitive. On the other hand you may see it as a USP re Skydemon.
3. Vertical Nav. Still not sure I fully understand this. What controls the vertical scale? Is it the "show airspace between" setting?
4. Also re Vert Nav, is there any way of making the numbers showing vert limits of say an ATZ more readable  .. not just the text size but making them stand out more (colour, halo around numbers or some such). Usually does not matter too much as trajectory line shows if you will "bust" the levels. But sometimes the actual numbes are useful. This is especially critical if vert scale is say 0-4000' and there is a 3500' airspace limit.
5. Finally I confirm that 8410 is truly sunlight readable (v735 would have been US and anything below 350 NITs no go as well). But it was a very bright day.

Cheers

D

Re clarity of numbers, this wd not matter so much if one knew for sure the scale.

Redraw  .. PFMS manages without any lag on moving map (but I agree after alerts the lag in PFMS is poor and v annoying).

8410 is 400nits

D