I've never had any issues with the feeder house plugging up ..... except with stumps! Did your machine(s) have stone trap/beater setup or was it just wet/damp canola windrows plugging it .... or both?
Mine always had stone traps. Possibly being the reason why they gave issues but they did catch stones if dumped regularly. Maybe they need to have a larger beater like the DSP on New Holland or APS on Claas, those systems both work very well. I have had a JD S680 here and it was only marginally better than the CaseIH.
This experience is picking up windrows mostly of wheat and canola. Sometimes damp, often tough, we grow lots of straw here. I have had the NH and Claas next to the 9230's a couple years back and there was no comparison for feeding ability. I did run the 9240 this fall doing wheat with a MacDon header and the feeder was still giving issues, wasted a lot of time...
AN ERROR DOESN"T BECOME A MISTAKE UNTIL YOU REFUSE TO CORRECT IT
Orlando A. Battista