When I found the loose pin I pushed it in and secured the wires as well as I could, and it seemed to work pretty well. Not 100% but best to date. Got back home and installed new harness they had shipped but have not been back on water. On trailer it preheats and starts reading every time, but as said haven’t been back on water.
Ryan the auto meter does use Bosch 049 sensor.

That seems really close to the tip, you check if theyre getting wet ?
I had some reversion at idle so I used to do the opposite, wait till I was on plane and running, making sure the 0`s were nice and dry and then turn them on.
Whats makes you think turning them on early and shutting them off late would help with lifespan? I wouldn`t run them at idle
2 things kill 02s , heat and water . You might also be reverting air since the tails are so short

https://cimg4.ibsrv.net/gimg/www.off...2bad5ef9d4.jpg

Are you guys using spark plug de-foulers (or similar) for your o2 sensors? I've heard nothing but good things from folks using them.

I run these. Smitty and I ran them back to back on the dyno with no issues.
https://www.ebay.com/itm/353868551416
https://cimg6.ibsrv.net/gimg/www.off...6c8fa7d4d9.jpg

To be honest i was told to hook them up that way. So that’s what I did. Should I not turn them on before hand?

My AEM info for my bosch 4.9 sensors says to never run engine with no power to 02 sensor. Always allow 02 sensor to heat up before starting engine for optimal sensor life.