MSefi.com read only forum (Jan.15,2018)

I have a megasquirt v 3.57 on a 1951 International SD220 engine using a Pertronix module to trigger the ignition. In the Project properties it claims MSII Rev 2.89000. In the direct coil ignition control documentation is says to set the "Spark Output to 'going high (inverted)' up to 2.886 code / 'High-to-Low' for 3.1+ code". My rev of code is the 2.89000 which falls between 2.886 and 3.1. Which version of code should I be following?
Thanks for your help.
Blair

The changeover seems to have happened around 3.0.