Lol scar everytime u say that I feel like saying "s1 is hardly preservation." You wouldn't be able to reproduce a strain if you only had s1s. You'd need a male, or the closest you could come is a cross that was bred with fems. Ily tho
Males would be great, but often aren't around.
Or if your breeding for a rare trait adding a male will take you backwards.
Sharing an keeping clones of the grail mama would be the best option.
but shit happens.
Even when you share cuts of it...
Heres what I'd do to preserve something super special.
Id take an elite mama and s1 ( self pollinated from Sts, CS ,GA) a shit ton of them.
Then use them to make 500000 more s2s ,more than you could use in your life time.
Keep them incase your mama is lost. You search for her there as all the genetics of he mama are in s1s.
Make alot of s1, s2 bx an sib crosses,then preserve them right an you won't loose her in your life.
As a last resort id Make crosses of her when it's lost potency an vigor.
crosses are better than nohing.
Seen Nevile say he wished he'd made s1s of his g13 instead of clones an crosses only....