Should a V3 Pen Be Hard to Push

[craigpaul]

Hi - I just received my new pens. Injecting Sermorelin with a V3 31g is really hard to push. I drew it from the same cartridge with a 31g syringe and it was very smooth. Is this normal for a pen? Appreciate your feedback.

[MyB]

If the stopper gets pushed at an angle it makes it difficult and can break the pen or the vial. Make sure stopper in vial is sitting even and put back in the making sure the plunger is as centered as possibly.

[drtexas46]

I bought a gansulin pen from Peptide Critic and it doesn't work? The push rod or spring loaded rod doesn't extend or retract.

[Sable Darqness]

i have bought 7 pens in total from 3 different vendors i've not had any jam up , that said i am a bit supicious of the accuracy of two of them