Long or short stopper cartridges?

[Paradox]

I’m researching premium manual-injection pens and bulk cartridges, but I’m seeing some products listing the cartridges as short stopper or long stopper.

Does anyone know the difference, or which is better? Which ones are sold in the store here?

[EXTROPIAN]

Maybe the plunger is more secured. Preventing it from leaking. I also have notice the difference.

[ResearchCat]

I have no idea what you are talking about. I have never heard of this.

[ResearchCat]

I have gotten carts from 4 different vendors and they have all had the same length plugs.

[EXTROPIAN]

@ResearchCat i gotten all my carts from Amazon. I do recall my first purchase to have a shorter plunger. After my second and thirds set I did see them little longer. May be it was just me with all this reconstitutions plunger juggle. Hold on Im going to do some semax for clearity.

[MyB]

Once upon a time I did get some pen vials from Big A that had a lighter gray plunger that was shorter and the head/cap of the vial was slightly larger in diameter than what I’ve gotten over the past 4/5 months.
Edit to add: I remember I had more unused peptide with the shorter plunger, usually 5-8iu. The longer plunger has much less waste, closer to 2-4iu.

[HockeyRat]

Whats your research telling you is the best option for manual injection pens?