when mixing gear in the same syringe I'm confused about how to measure. if I'm mixing 1.2 cc eq, .8 c prop and .2 cc b12 that ads to 2.2cc but always ends up 2.5cc. now when u draw say 1cc of something u draw until the top edge of the plug is on the 1cc line if I'm correct. the problem I'm having is the dart has space in it as well. so when u pul back the plug to put in another compound that 1cc now register as about 1.1. should I be using the botom edge of the plug to measure? if anyone takes the time to read this long message please shed light