@McMullan - I am forecasting for my new yeast starter method from 2ml vials and wanted to ask your opinion - Would you have an issue with keeping the 20ml, 100ml & 500ml propagation steps at 1.020 then moving to 1.035/1.040 for the 2.5L step?
This would make the pressure canning a lot easier. I could make a qt mason jar of the 1.020 wort and use it for the first three steps by pouring a bit out and keeping it sealed in the fridge until the next step.
Thanks again for your help. I am seeing a lot of potential with this approach as overbuilding the starter a little and grabbing a few 2ml vials worth of slurry seems like a better approach than harvesting from a batch.