We have the Agco fine cut choppers in the machines both are running @ higher RPM. After looking harder this morning We noticed a real slime type layer in the area immediately after the chopper, am wondering if we are feeding so smooth we dont notice it getting tough and keep going thus causing moisture build up with dust sticking to it so tough straw does not flow out discharge well and makes a dam stopping the flow and it backs up from there. Straw was very tough last few nights, as it runs during the day this wears off and works well then as dusk hits and moisture goes up it forms again slowing straw again. we seem to be leaving "bales" every once in a while before it pluggs up. Wonder if 72 is not powering out as fast and therefore dont slow down as quick as 62 so it cant clear out and that is why it pluggs more often. I will try the plate welded in as well, just to clarify the 2 rows of holes prior to chopperIJ That R62 starting problem appears to have been a bad battery that the load test did not pick up first time around.