No, not really , the N and R series successfully used this shoe up til about 96. I suggest also looking at your throat seal in front of the drive axel. I have never had a problem with shoe loss except in wet milo. I suggest you have a rpm problem or adjustment problem or your splitter is off. there is a splitter relocation kit for situations needing more air in the shoe. You don't have a small seeds kit installed do youIJ As stated there should be a nice 'rooster tail' of material over the end of the shoe. If you ahve too much air it will blow it out but more often I see to little air which lets grain 'walk' out in clumps.