I’ve had great luck with SNS Starters and I am definitely a convert. I’m currently doing 10 gallon batches, so I generally use two gallons jugs each with 32 oz of water and 1 yeast pack. Next up is a lager with a standard gravity (don’t have it in front of me know). My question is whether two is still sufficient for a lager?
With ten gallon batches of lager, I have found that two dry yeast packets is sufficient, so two standard liquid yeast SNS starters at high krausen should be fine.
For 10 gal? My experience says yes.