Abrasha -
I don't think you understand. I know all about propane tanks - I have expired a number because they ran out of date.
THe OPD limits flow. Those in the small 5 gallon bottles are now only OPD and only those are filled - unless by a wildcat or non compliant supplier.
I live 65 or so miles south of you and I'm sure the rules are not that much different.
I'm using it on my forge and going to build a furnace. The OPD won't provide the flow I need for the higher burn rate needed.
I'm sure you use a small torch or a barbe - I use the new OPD's on the barbe.
Martin