"Adventure Sync mileage stacking"

#PokemonGO: Hi, I'm new here and new to the game (playing for about 3 months). Just wondering if it's possible to stack miles on Adventure Sync. I saw a video saying to turn off AS then get miles and when you need the miles for egg hatching you can turn AS back on to get it. I'd like to try to hatch 2 batches of eggs with 1 star piece. Does anyone know if this can be done where you stack mileage overnight (i.e. shut off AS and pogo Sunday night, then open it up Monday morning)? Thanks via /r/TheSilphRoad https://ift.tt/39ERlfi