Hey man not tryna be a dick (it just comes naturally) but there are 100 ius on an insulin pin. Pretty sure 1 iu is one line. 10 ius is 0.1ml.
Depending on strength of compound vs ml of bac water used to reconstitute will make the final product more or less potent, which can make it less or more accurate to dose.
For example if you have 10mg
(10mg=10,000 mcg) of mt2 reconstituted with 5ml of bac water this would make 1iu=20mcg dose. You would need to pin around 10ius to get a good dose of mt2 (200mcg) but I believe you should start off lower and work up to a higher dose to see how the side effects are as everyone has a different tolerance.
Mt2 can make you feel sick if you have too much and can also give you mad boners

so great to dose at night 1/2hr before you go to bed with the mrs
Also not sure where you boys are living but why are you using mt2 in winter? Is it working for you as the uv levels would be pretty low now and you need to get out in the sun to get the most out of the mt. I’ve never used it in winter and dont get much sun then either so Im white af.
Anyway 10mg diluted with 5ml = 20mcg/iu
5iu=100mcg
10iu=200mcg
15iu=300mcg
20iu=400mcg and so on. Remeber 100ius in each pin.