That's basically what I did, but I use a large tweezer to meter the squeeze so I don't smash them. I reasonably guage the length of germ to the others of that type. E.G. if one or more are already up and going the others are on a timer. I figure that if they are going to open it's usually within a few days of each other at least that is my experience. I waited 4 days after the first p10 came up before I started to worry about the others (do you think that 4 days was too impatient?), I generally have good patience but I have lost seeds to inaction too. Of course weak ones should probably be culled but I don't like to just let things die if I can help it.
k, some images may be in order
View attachment 1886955View attachment 1886956View attachment 1886957View attachment 1886958View attachment 1886959View attachment 1886960
I usually have 100% or close to it. The one I performed it's crack on is breaking surface this morning! The one that started opening up at the surface is still opening but slowly and it's not dropping the tap still, it's opening right on the surface.
**medium - metromix, light soilless mix
my solution for germ/seedlings is filtered tap water (300-400 ppm, post amended ph 6.8 ) with 1/4 strength big bloom, 1/4 strength root drench , microbe brew tea 1/4 strength, 1/4 strength aquashield, 1 drop per liter superthrive, and 1 drop of yucca extract wicked from the bottom as needed.