Smoked some kielbasa for the first time yesterday. Started them at 120* until casings were dry. Bumped the temp up 10* every hour until the chamber temp was 170*. Pulled the kielbasa out when I.T. hit 152*. Cold water bath then hung to bloom for 2 hours. Casings are very tough. Very dry and chewy. I used Hatfield casings that were packed in salt. Soaked the casings for 2 hours before stuffing. I used my MES 30 with no water in the pan. What am I doing wrong?