Sounds really nice
About your noise free position 4 but not 2: Most P90s are made to be put in two-pickup guitars, so the bridge pickup is RWRP. When you put P90s in a three pickup guitar you often just use an extra neck pickup for the middle position, so that is why you have noise cancelling between the bridge and middle but not between middle and neck.
I know that Lollar also makes sets, where the middle pickup is RWRP, so maybe you just got the wrong set?
FWIW: I have a guitar with three P90s, but it is wired such that in the middle position of my 5-way selector switch, the bridge and neck pickups are selected - and since my bridge pickup is RWRP, this position (3) is also noise cancelling. It is a great sound. I miss having access to the middle pickup alone, so I might throw in a switch at some point. But you should really try the neck and bridge combined. It is a very funky sound with lots of tele vibe.
Those gold foils sound really good.