[aprssig] BALLOON unproto paths

[Bill Vodall WA7NWP]

> I operate airmobile frequently with a path of WIDE1-1 and WIDE2-2
> alternating on my TT. I get very good coverage at 1,000 feet and up. I
would
> NEVER operate airmobile with RELAY in the path. Why not just use WIDE1-1
at
> high altitude and WIDE2-2 at low altitude?

WIDE1-1 is the replacement for RELAY...

That would now be:  WIDE2-1 at high altitudes and WIDE2-2 when low...