Budget and security concerns are the two biggest factors in making my choice, along with the fact that I'm closer to the end of my taping career than the beginning.
Getting an iPhone, a d:vice, and mics that look like two lengths of cable past walk-through detectors or past the tray inspection is the main consideration. The iPhone is expected by the venue. The d:vice is far less expensive than the sax, and seems more likely to get past security. It could easily pass as an external phone battery with USB>Lightning cable connected. The mics can be managed with some ingenuity.
Add in the fact that I can get my current rig into most any other small venue where detectors aren't used, and that means buying an iPhone rig will only be justified for an extremely limited number of (high-$$$-ticket) shows. And the economy is about to go into a recession. This isn't the best timing for a new rig.
Anyway, getting back to the microdot connectors, I did a search on the
Sennheiser SK 2012 unit, and photo #3 does show a really beefy connector as John mentioned earlier, but thread may still be 10-32.
Still waiting to hear back from Countryman, but at least the microdot connector photo linked on their site is quite dainty, like the photo in reply #1 in this thread.