Course is horrible if you have any grit, stone or course sand. We might use 25 sections a year between 5 heads cutting cereals and canola. Have had way less trouble using fine except MacDon only sells new FDs with Course.
We don’t have any issues running course either in just cereals and and canola! The fines go to crap just as quick once you start shaving the ground.
Yep. We used to do alot of forages and grass as well so dad always demanded we run fine serations. Well they wear out extremely quickly cutting beans on the ground . Switched to coarse last year and we are getting much longer wear out of them. With Crary guards you wear the knives dull before you break them anyways.
Personally I think the tigershark is a bit too aggressive but one of the headers I picked up end of last year has them so I'll try them out and see how they compare to herchel super heavy chrome and Crary coarse.