1. Feeder Wrong feeder temperature   1. Feeder Adjust feeder temperature   2. Machine Setup and Operation Blow mold contact time too short Insufficient cooling wind application especially on the deadplate Bottle stretching in take-out due to insufficient final blow pressure and/or time of application Bottle held in the take-out too long   2. Machine Setup and Operation Increase blow mold contact time Increase cooling wind Increase final blow time and/or pressure Check blank time. May need to take heat out of glass on blank side (heat the glass backup)   3. Mold Equipment Mold size too small (mold running too hot) Insufficient venting of the blow mold   3. Mold Equipment Use a larger size mold and holder Correct venting of blow mold