Thought I'd sort of report on doing this. Got some 29G, .5", .5ml pins recently and did a few injections over the weekend. First up was vitamin B12. Loaded pretty easily and the pin was nearly painless. V B12 injects very easily using a "slim pin". Slick as can be actually.

Next up was my bi-weekly dose of test. cyp. Loading the test. cyp. requires some patience...takes several minutes. You can get it loaded, however. Obviously with a .5ml barrel, you can't do very big injections of test. cyp. The injection itself was again, almost painless. The test. cyp. injects at a faster rate than it loads into the barrel. Something about the pressure you can exert with the plunger and a very small diameter barrel.

Overall, I prefer using these small syringes to inject. I feel like there is less pain and less trauma to my quads. No blood on withdrawing the pin either time, so that was nice. I don't think I will go back to using my 25G syringes. Even though 25G is a rather small gauge compared to 21 or 23G, it is huge and scary looking compared to these 29G diabetic syringes.

You may want to consider experimenting with diabetic syringes and more frequent test. cyp. injections to normalize levels (and reduce conversion to E2).