I have a TP Tools Scat Blast Cabinet and was having feed problems. I did a lot of research, (i.e. reading online) and found a post where a guy was having the same issues. He started using less media and his feed issues went away. So, I gave it a try, I only put 25lbs of a 50lb bag in the cabinet and I have had no feed issues since. I can't believe how well the cabinet works now, no more banging on the cabinet to get the media to the suction tube. I'm very pleased. You also want to make sure you have the correct size orifice and nozzle. My compressor is an IR T30 5hp 2 stage, I run a suction gun at 90psi with an 1/8" air jet nozzle and a 1/4" gun nozzle. Per the chart I'm moving about 1cfm of media. Make sure you have a good water separator. Good luck.

Keith