I ran a strategy for a number of months with something similar to you Emily. Was a high-risk high reward strategy where I really did not care about the FICO score as long as it was stable for 8 months. 16 YTM min and notes could not be more than $12. These notes, of course, were never late, but definitely did not stop them from going late or defaulting.

The strategy ran well for awhile then a big rash of BKs really sucked a lot of the profits out of it.
Been going with a new strat the last four+ months that is way less risky. Only buy about 50 notes per month. So I am just small time so I can be very picky. Two notes just popped up in IGP out of the blue that has not made their first payment to me. So I am seriously contemplating my future with FOLIO. The time involved with handpicking can be frustrating. Ending up with buying multiples of the same notes from NSR is excruciatingly frustrating.
Emily what you mentioned about the FICO score not telling the whole picture in regards the FICO direction is the main reason I could never go automated in buying FOLIO.