I used a infused pellet crumb with N Butric Acid on a flooded Trent, after I and all around were blanking on the usual baits. It worked better with a dendrobena than any other bait. Had a good bag of barbel when others continued to blank.
Didn't work again!
Still safely sealed away for another trial!
Also tried on a very slow day the Van de Ende Predator plus splashed on the maggots and got myself a good bag of perch. Still awaiting further tests very soon.