Has anyone tried?

hey, you've been ground-layering, that's supposed to work like air-layering and that's better than rockwool cloning to my experience!

it may help.

this is not the first i have herd of this. the only thing it could offer is if you had few or no seeds,
to keep a strain alive without seed and there are plenty of ways to do just that.

time is the biggest hinder to this venture.