With the vacancies and changes in personnel that have occurred in the past couple of years or so in some of the WCO districts serving Berks Co there was bound to be some lighter coverage at times on certain waters. Furthermore, with the Covid situation and increased boating activity at Blue Marsh I would not be surprised if added emphasis was placed on safety concerns there.
As for FFO, its a relic of the 1950’s and early 1960’s when the comparative delayed C&R fishing mortality caused by flies vs spinners was unknown and when (1950’s) spin fishing was just gaining traction in Pa. Fly fishing at that time was the only C&R management technique for trout known to provide acceptable fishing mortality rates. By the mid-1970’s much research had been done on comparative C&R delayed mortality rates associated with the two techniques and it became clear that at the population level fish mortality rates from both were acceptable in managing C&R fisheries.
Fast forward and improved bait fishing techniques, specifically tight lining (not sitting on a bank with a tight line, but more like nymphing without an indicator) has been providing acceptable, relatively low delayed C&R mortality rates as well. See the Idaho studies. Likewise, when bait anglers have an incentive to C&R successfully, they can do so at very acceptable levels. See the Pa Bald Eagle Ck study.
When doing angler use and harvest studies of selected DH Areas in the late 1980’s or early 1990’s the PFBC found that spin fishermen represented an average 30% of the anglers. Two of the study waters were Cheater Co’s Middle Br White Clay and W. Valley Cks. As I recall, of all waters in the study Middle Br had the highest percentage of spin fishermen at 35%, so variation among waters was low.