i found a bag of test i preloaded in a drawer 3 cc syringes.
i think the girlfriend came home and i just shoved it in unseen area then forgot about um.
It was 2 jab stick. they had been left for about 5 years .I found them they were colored black . The gear actually cuased the rubber stopped to turn into liquid and the whole thing had black swirls mixed in it then on the top it had mold growing on the part that was exposed to the air.
i say if your gonna preload them besure to use them pretty soon. After that i dont preload no matter what I just draw from the vials when needed .