Originally Posted by Rap4paintball
I would prefer to stay away from pbn and with a steel tank. Its not that I dont trust a fiber tank, but I trust a steel tank more, they are normally flat bottom, cheaper, and I dont mind the added weight.
Not sure if the flat bottom thing is for comfort when shouldering or part of the safety thing, but rounded cylinders are stronger than flat bottomed ones, if you were to compare otherwise identical cylinders (ie: same volume/material)
For non fiber tanks, PMI has a 68/3k that goes for around 65 new, and ACI has a nice little 47/3k for around 75