I sorta thought this was a "standard Practice" in the spring of the year, atleast, It has been for quite some time for myself and a couple friends for quite sometime..I mean the short lining and heavy flies...I like this when the smallies on the lower penn's are still lumbering in their wintering holes and not so willing to chase down a meal just yet. Dredging the seems, dropoff's and bolder edges in this manner has alway's proved nearly the only way to catch very... early in the year!
As well as fishing channels/submerged creek bed's in lakes...
Wish ya great fishing,Bill