Are you actually using them right of the box or are you washing them out first? I find you HAVE to do that as more than half of them still have somethign nasty in them and when you wash them out you pull the filler ring and when you pull the filler ring good luck in getting it seated back properly and if you don't seat it back properly and/or leave the filler ring off good luck trying to fill/re-fill one in a non-syringed
mod, trying to eyeball your fluid so it doesn't encroach the cup slits, etc., etc....
I went to my pharmacy last night and they don't have 3 ml BD's, just 5ml....If this tankomizer isn't goign to work I am goign to have to find some or some terumos or monojects and have a syringe
mod fabrication party for sure...and be cool bad if you can get some of those ptb's you were designing out. Whatever happed with CoV?