Yeah I have way too many total fails to make 10ml 1st-try bottles.

I just make sure I always have plenty of 1ml syringes; with such a small quantity, you have to try to be as exact as you can, because any mistake is a big one! I get my 1ml syringes at wizlabs, they seem to be pretty good quality; I always put tape over the graduations, so they don't wear off with constant use and rinsing, and they each last at least a few weeks (or more) before they get to the point that you can't easily push or pull the syringe.
Once I've tested a recipe once or twice at 5ml, and have a pretty good handle on it, then I'll make 10 or 15 ml, and see if I keep liking it. If I do, and probably with some final little bitty tweaks, I'll make a 30ml. The only one I like well enough to make 60ml (or more) of, is my strawberry & cream; I can vape 60ml of that inside 2 wks.. maybe 10 days.
Andria