I stumbled across a thesis that compares results between PP, Stages and a GPS App (Innovative App Design).
You can read it here: https://spatial.usc.edu/wp-content/uplo ... ouglas.pdf
The conclusions are very positive for PP, but I think that there is a source of error that the author neglected and could close the gap between Stages and PP even more: the obvious fact that Stages is a left leg only PM...
Anyway, it is a good read for us PP owners and for Velocomp engineers

Best regards.
B