I use a 9500 and 9600 to harvest my sunflowers. For as long as I have owned these two, the 9600 ends up with smoking, smoldering sunflower dust FAR more often than the 9500. Any ideas why? It looks like the smoldering begins with the dust accumulating on the edge of the turbocharger. This falls down and begins smoldering around the batteries. We run the 9500 in a similar manner using the same header and similar speeds, yet it rarely accumulates smoldering dust.