It's great to be able to walk to the freezer and have multiple strains available any time you need them. For strains I use regularly I'll still top crop or save slurry from a fermentation so I'm not using a frozen vial each time. But, they're there if I need them.
It's really not difficult. I have a pressure canner so I put the water/glycerine solution into autoclavable plastic vials and heat them at 15psi to sterilize and add the yeast after cooling. I believe I used the process from one or both of the links below...
I think you'll have success. I keep multiple strains frozen in 50ml vials. 25ml slurry, 20ml water, 5ml glycerine. When making a starter from a frozen vial it takes a while for it to really get going but I have had 0 failures.
Do you think there would be some invert in Landlord? I just brewed one a few days ago with 90% Golden Promise, 10% No. 1 and a little caramel color at flameout. Their website lists sugar in the ingredients but I guess that could be priming sugar, I'm not sure. I subscribed to your channel a...
If you're interested, check this thread for a modern version of a London Porter from Fuller's. Quite a lot of crystal actually, but only half as dark. See the recipe at the bottom of the post, regular London Porter.
I just did a Stong Bitter with 1469 and it seems to be a great yeast, 79% attenuation with a good dose of invert. Tasted good going into the keg, It's going to condition for a month, will be a long wait.....