thank you
Using Zbrush gives you ways of „inventing“ new products just by the use
and the exploration / playing with its features. and this will change the world 
Concerning the upright printing position:
I have a pretty cheap dlp resin printer. and i tested it with laying the object flat on its building
plate.
A problem occured (it is daylight resin which cures at very low energy) and the parts
started to warp and deform.
So i always try to position an object that there is as little exposure per layer so the warping
is as low as possible. The support structure peels off very easily and so i dont ruin the details
on the surface.
All the best and cu soon,
Cosmic