You could test for us?I've read through that, and most of the examples are so far off from what I'm going to be running that I can't see them as comparable. But that's OK. I'll start with 2S2P and give it time and see what happens.
Trouble is not everyone is in the situation where they can choose between the two, sometimes you have to go series to meet MPPT start up, or parallel to keep under max PV voltage