Thank you all so much for your support!  75,000 subscribers...incredible!

Also thanks to everyone who submitted!  If your question wasn't answered, check here:

7500 QA Part 1: https://www.youtube.com/watch?v=vfrvJyQYHYw
7500 QA Part 2: https://www.youtube.com/watch?v=3bhMT_Ffr0g