the jewellery scale is a good habit but calibrate

a jewellery scale to 0.01g is enough to catch a 10% short fill and not enough to catch a 2% one

writing the recon date on the vial with a marker is the single cheapest habit in this channel, on a u100 barrel

pick the volume so your dose is a whole number of units. thats the entire trick, thats with a 30G pin

ill take your word, give it ten minutes

i went from eyeballing the meniscus to reading at eye level and my units stopped drifting, someone check that