I’ve read that ga3 is best used on seeds before… but perhaps not always, or perhaps it’s just a rumor? Someone did an experiment, and the seeds hit with ga3 didn’t germinate more reliably, but did have a much higher death rate after germination. As high as 100%. Germinating old Seeds - #44 by MadScientist
If anyone else has done any testing with it, I’d be interested to see the results.