45 degree angled use of iPad Pro is best done with their cover.
The NanoStand won't work for that (even two of them) because of the size and the extent of cantilever for the center of gravity.
For glare management, you can however use NanoStand under it for a 10 degree tilt which works well.
Mostly though, we think users will want the iPad Pro flat on the table to accommodate drawing. This works quite well with TextBlade since its compact footprint is not a barrier between you and the screen. It's a very nice combo, and we often use the iPad Air 2 that way as well.