New HFS4 owner with initial setup questions

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New HFS4 owner here with initial setup questions....

1) Should I use map 2 with a single 1.0mm or a single 1.2mm jet? As single jets, they seem cross the boundary into map 2 from map 1. Which should I use for the larger single jets?

2) Page, 21, step 9: Okay to select 2.5 BAR for a 2.0 BAR sensor?

3) Page 21, step 12: Can you confirm that the user guide is correct in that WBO2 is grouped with EGT and there is NO soldering to do here?

4) Page 21, step 13: If I am not going to worry about failsafe yet and just leave this configured to trip the low water LED, will it still compensate flow based on WB02?

5) Page 14, step 1: Should I trigger on IDC or P+I? My engine is a supercharged stock motor and it is PI, not DI. Seems like I can go either way on this. I do want to start spraying before boost comes on if that makes sense. Is there an advantage to using the P+I on non-DI?

6) Once I get this running for the first time, which knobs should I start twiddling first and is there a recommended setting order or method? Referring to TRESH, P/I-R and GAIN here.