Thanks for the advice, much appreciated. Decided to skip TBDS.The compression spring (207932) is actually the Trigger Bar Detent Spring (TBDS). It is part #22 in the exploded P2000 diagram (circled in RED in the below picture). It goes underneath the Trigger Bar Detent (part #23). If you are going to use the V4.1 TBDS, you may need to swap the Light TRS with the Heavy TRS as the light spring does not have enough force to reset the Trigger Bar properly. You may run into the "stickly" trigger reset issue if you keep the stock or Light TRS.
You have a couple of choices:
1. Keep both the V1 LEM springs as you currently have and skip the TBDS
2. Install the TBDS and use the Heavy TRS
For the remaining questions, they're all normal.
Took the P2K to the range today and it ran flawlessly