In SOTA CW pileups, the QSO rate can be 2-3 per minute. When logging, every second counts. Usually, the only variable in RS[T] is the signal strength S. That’s what I write down when using paper & pencil.
I would like to propose an RST auto completion as follows:
A single-digit entry in an RST field is completed with R=5 and (CW only) T=9.
2 examples: 5 in CW becomes 559, 7 in SSB/FM becomes 57.
IME a signal report of 11 in SSB is a bit of a nonsense and 22 is a report which is given later via email to explain to an op why you couldnt’ complete the qso… if indeed you knew who it was at all.
But 51 and 52 is an often given sig report which makes sense
So a single 2 or 1 becoming 11 or 22 is a bit strange