I've setup a large 8 x 15 wall of dispensers, each equipped with shears & facing its own bee nest. I've setup a series of redstone connections to the dispensers in such a way that each direct redstone dust connection treats its respective dispenser as a quasi-connective block for each dispenser around it. I've come to find that, despite the bee nests being saturated with honey, when activated, the quasi-connected dispensers don't shear their combs off consistently (I also noticed that the shears in them were receiving durability damage regardless as though they had successfully sheared however). I setup another wall of dispensers after this with the exact same layout & placed a single redstone dust into each one & activated the circuit to find that every single dispenser dispensed correctly by adding up the dust placed into the system & put out after activation. I've included screenshots of my circuit setup & the pattern of bee nests that were not sheared by my system for reference.