I am looking through the converters on a site and I see everything from Schmidt piston to vacumn converters. Which is the best way to go? I have no problem filling as I have syringes from being a diabetic.
Dilbert - for me I like the piston converters as I can get more in them than a squeeze one. The problem with a piston is it has to have a pen long enough to get it to fit in. For the most part I think you are looking at a preference rather than which is better kind of thing.