This, right here.
I deal with my local FSDO concerning full scale aircraft and have brought up the drone subject a couple of times.
Seems there are only one or two people in the region that deal with drone related stuff and the others are...
How about a 3T and volunteer your services to a local FD or County Safety or PD/Sheriff/911. It feels good to be productive and help others. Get your 107 if you don’t already have it.
A bit before Christmas, I ordered a rather large SSD (8TB) from Amazon. It cost a smidgen over $870. When it was delivered, I thought the box was rather large. When I opened it, I found out why. Instead of sending me a box with one SSD, someone...
If you need a mechanical shutter, I think the 3E is the only current option. I think it's unlikely we'll see a 4E with the release of the Matrice 4 series.
The P4P is still a workhorse all these years later, too bad it's EOL.