you say you leave your corn inserts inIJ that i've never did,may crack to much, but did put in ft. closure plates to help w_ hard to thresh wheat, but if your gonna run a 36ft draper, you'll be surprised what that 9600 will handle, since all the heads go into the machine first. your biggest loss area will be the walkers. so your cancave will pretty tight and cyl. speed up there too. run your fan 100 to 150 higher than book settings and keep her full. you won't be doing mach 4 but a 9600 will give ya a good sample if ya play with and keep her in good runnin shape. good luck mit9750