ringers bag-up pellets and coolwater pellets

hey
anyone tried these?
i currently use hailbut for my carp needs but have been intorested in the ringers bagup pellets for a while but have not had the confidence in trying them out, anyone tried them and if so what do you think of them.
also for the coolwater for winter as i know of a guy that has used a misteriouse white pellet wich could be the coolwater pellets as they are white and new out.

usually, on commercial fisheries, i use halibut 6 mm to 10 mm jellets (jelly pellets) fed over a bed of the owneres own pellets, this has become a ntural food for the fish.