No, I typically veg 70+ days, and I've seen a lot of strains veg that long without showing preflowers. It's a little annoying though, heheh.

Are you waiting to upcan until you know what they are? Otherwise, you'll have a couple more weeks of veg before you flip them, so maybe they'll start giving clues.

Oh ... and I like your glass work. I did a lot of it when I was young - chem lab stuff, etc. From time to time I think I should take it up again, as a hobby.