ORIGINAL: MTdrahthaar
1. 2-2.5 seconds. Trigger speed ontrail cams is over-rated. Proper setup can compensate for trigger speed, I have never set a cam perpendicular to a trail anyway.
2. flash range is 35-40 feet. Yeti board can sense movement far beyond that, probably up to 80 90 feet.
3. delay can be set to 15s, 30s, 60, 1m, 2m, 5m, 10m
I pretty much agree with everything here with the exception of the trigger. I almost always put mine at a right angle to the trails I am watching. With a 4 wire fast mod and a wide angle lens, the trigger can be much faster. Mine is faster than all 4 of my P41's with wide angle lenses. Here's a pic. Duplicated the same test with my 41's and they missed the dog entirely.

The time/date was not set correctly. Did this about 3 weeks ago.