I got ya man. I am not a hvac tech and would not recommend anyone messing with hvac equipment unless qualified. There are many nuances. I wouldn't mess with my equipment even though I know a little about hvac. I find it interesting. Especially heat pumps. It seems impossible to grab heat out of the outside air when its cold like today or worse.
it's all good, just still not thrilled that they didn't design a different Schraeder valve for the new refrigerant.
Can't wait to hear what the tech says is wrong with the system...