The fly shop at the Hancock, NY, West Branch Delaware bridge was an ancillary shop owned by West Branch Angler and has been closed for a couple of years now. West Branch Angler's main operation is further up stream near Deposit, NY.

I am pretty sure I saw some Watermasters just outside the fly shop there last year-2008. Give them a call and see if they are still renting them at the main location--800-201-2557.