I don't like the quick cut for it would not cut navy beans clean. The standard worked better for us and now we order the flex heads with SCH which works great. We just got a head with the Crary cutterbar and it looks very good but havn't tried it yet. The only way we could get the quick cut to work is to fasten a full set of bottom guards on the top of sickle and shim to just fit. We also flipped ever other section and modified some standard guards for the location ahead of the sickle head.