I think the dosing is probably more accurate on the Terumo syringes than the fuzzy thick line on the old ones. A 1.75 on the old syringe may be a 1.5 or a 2 on the new ones. I moved closer to the 2 for this morning's shot.
If he doesn't come down soon, I will start a new pen. This pen is the last of the batch I got last August. Not sure how good the new pens will be since I picked them up from the post office warm.