Last season I planted over two dozen seeds outside, they were bag-seed btw. Of those garbage seeds I had maybe one that didn't sprout.
I did the shot glass method, for about 24 hours. I only planted the ones that were able to take in water and actually dropped to the bottom. I always get them well before the break the shell, as I do not want to deal with a sensitive seedling that has sprouted already. So them sinking means they are ready IMO.
Then I planted them in small jiffy pots for easy transportability till they were ready to go into the soil (which was about when that 4th leaf set formed).
I did the same type of germination for my Nirvana NLs, and so far those are 2 for 2.
Recently though, someone has in their signature a good write up as to why it's actually better to avoid pre-germination methods and to plant them directly into the medium in which they will be growing..... made some good points.