Check out the results: https://docs.google.com/document/d/1alv05cXh0WhNaFPoq3LNzxmv6veurf6utV1kMQAYDQw/edit?usp=sharing
2019-09-10: Updates in the document and comments here:
UPDATE TIME! I'll bet you guys never thought this thread was going to get necro'd, but a few minor updates to share.
First, I redesigned the dice roller a bit to be more reliable (using a stepper motor primarily) and to do a better job keeping heavier dice tumbling nicely... the latter of which is so that I could test the new Gravity Dice X-Wing metal dice. Spoiler: they're fantastic and consistently fair! I also tested a pile more FFG core set dice (total of 20 of each color now).