Check my calculations (and questions about pen)

Your math lines up perfectly. Doses from the pen match what a syringe delivers in units.

The figures add up properly and the measurements line up fine. I employed a venting pin while loading my holder and strained the mix whenever possible. An online dose estimator helped me review my own numbers and proved quite useful. This kind of thing can draw you in quickly.

Why go with a pen instead? Getting those initial shots down can be tricky, I get that. Starting out with needles was a real struggle for me, but once I pushed through the beginning phase, I've come to rely on them completely. If the stuff was supplied in a cartridge, I'd definitely choose the pen option. For something in a bottle though, needles are what I reach for. Transferring between containers isn't something I do because each step raises the risk of problems or contamination.

Wow I'm glad you mentioned the challenges you dealt with because it helps me figure out how to steer clear of those errors too! 🙏

When I first began I mixed one milliliter into a ten milligram vial but later changed to one and a half milliliters for thirty milligrams once I raised the dose. Larger amounts need more liquid which shows up more if bruising happens easily for me. With a ten milligram target I started at one milligram.

I have to confess that once someone opts to filter or move the contents from the starting container, switching over to the pen format starts to feel logical overall. From the earlier comments it appears that part is already sorted, though later on a newcomer might run into extra steps. I kept the concentration level from the initial container lined up with the pen dose markings in my own case whenever possible, since otherwise the whole thing turns messy quickly. I'll let the folks who know pens better handle any further details on that. Hoping things work out well for you.

A couple of videos that may help.