Yo Makee
One way to recycle old line and also hack your way to a 2wt line is to use the running line of an old WF. Mike the diameter - it varies from 0.030 t0 0.043". If you examine the taper of the very light 1 and 2 wts, you will see the taper dimensions vary very subtly.
I adjust the casting dynamics by playing around with the leader butts to get the level line to roll out. This hack works best with short casts - under 35' - but that's my operating range with these ultralights anyway.
Another similar approach is to use a running line - again check out the diameter to decide whether it's going to work as a 1, 2 or 3wt.
The best part, besides being cheap, is when you wear out the front part of the line, just cut it off and reattach the leader. I figure some of my setups will last for thousands of hours - pretty good since I figure my lines last for 300-600 fishing hours.