About a month ago I sent in a negative commentary on plastic foundation.Although I have experienced some improvement in my bees reaction to Pierco it is still not up to the reaction to a normasl wax foundation. I started using it last year and got an almost 100% negative reaction and only the slightest depth of comb was drawn on in one super and none on the other. Having listened and read many peoples commentary I think that Pierco users will get best results when the hive is 100 % Pierco. There is no doubt in my mind that Pierco has some long range benefits in durability and certainly knocks the effort of assembling rames to zero. This year I used one super of Pierco in with two of wood and wax onn either side. It was far le;s than satisfactory .The south side of the frames were hardly drawn out the north side were fully drawn but v ery irregular. The supers above and below were drawn normally and well filled with honey . I am also using some Duragilt. Last season was a real tough one here as elsewhere. In some of the colonies I found much of the wax on the Duragilt eaten away while other parts were used normallly. I was distraught when my new colonies did not build on the bare plastic areas, and apparenlty made some of them bigger..However as the summer has worn on the bees have fully drwan the combs over all the Duragilt and show no preference with respect to the plain wax foundation. My plans for 1997 include one hive 100% duragilt, one hive 100 % Pierco, and the rest in wax. There will probably be five hives next year.