Have a 1996 Hesston 8100 with a 21ft shiftable table. Having a hard time cutting canola and making a decent swath. Seems to plug up in lodged and slightly leaning canola. When its standing straight up it can cut almost as fast as you can go. Any tips or suggestions making it cut better in lodged and down canola? Seems to be too bushy to get through the throat. Lots of plugging between the reel and back.