Re: How do you identify your lines?
I had the same problem you had after my 30-year layoff (which makes me wonder if my fly lines were still any good, having spent all that time coiled up in hot Texas garages, although so far so good). What I ended up doing was springing (no pun intended) for an Umpqua fly line scale, which allows weighing the first 30 feet of line, then comparing the weight with a chart they provide to determine which weight line it is. However, I haven't come up with a way to determine which is weight forward, double taper or level line other than eyeballing, although you would think that the first 30 feet of a weight forward would certainly be heavier than either a double taper or level line.
On the whole, I'd rather be in Wyoming . . .