Play:3 stereo pair on S2

In a drunken stuper I accidentally upgraded my two play 3's to S2. Nothing but issues ever since. Cannot get them back to S1 even after an hour and a half on the phone to technical support. Reset made no difference and attempted downgrade did nothing . Still stuck with S2 which in my opinion is hopeless. And it took me forever to configure them to a stereo pair as they were before on S1. Is it me, am I missing something, why didn't Sonos just leave it alone ? Never had  a problem in thirteen years before this. Only thing I can think is don't get drunk and have a grandchild ask for a Mary Poppins song !  😂