Personally, I always pull my last dose with a syringe.
K
keithvarin
@keithvarin
Posts
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V4 Pen - Final/Partial Dose from Cartridge Question -
Which pen to buy@Commander
Youre looking at the wrong pens. Even the ones on Amazon or AliExpress, which typically have a chrome band around the center, they separate into three pieces. The cap, the cartridge holder, and the injector unit.I have ordered about 11 of them off AliExpress because they are cheap. Ive seen many complaints about them being unreliable, and I found a few of the V2 units that were indeed having issues. However by inserting a single small 3d printed part to add tension to the spring mechanism inside, they all run mint now.