What made you stick with the corded one after trying the M12?

Rip but it's just a plant lol.

Oh wow, that totally happened to me too. My kitchen is super drafty and cold, so my starter was just sitting there like a sad pancake. I started putting the jar on top of my fridge where it's warmer, and using water I'd warmed in the microwave for a few seconds. It finally doubled in size after that. I guess some of us just have to find that sweet spot.