HP versus LP steel tanks

[matt t.]

It depends on what size tanks you are looking at. The upside of the HP tanks is that you can get more gas in a smaller package due to the higher pressures (IF you can consistently get FULL hp fills). The upside to the LP tanks is that you usually get full fills due to the lower fill pressures. The down side to the LP tanks is the larger size/weight of the tanks for their volume when compared to the HP tanks of the same volumes. Personally I'd always go for the HP tanks, even if they're not completely "full" after cooling down they always have more gas in them than the equivalant sized LP cylinder. You always hear about "cave fills" and other non-sense about over filling in other places of the country. Over filling is not a common practice here in Wisconsin (for good reason), so I buy/bought the appropriate sized cylinders for what I know I need and can get filled, not something smaller I hope I can overfill. YMMV.