There isn't a knife roller equipped cornhead available in the US that is capable of performaing as well as, or to the level of the lexion cornhead. Only a cornhead equipped with shredder or rotary chopper can cut as good as or a little better. The lexion head's knife rolls have four blades each, whose blade's cutting edges are timed so that they meet, creating a very well defined and agressive cutting action (e.g., like the old CaseIH headers did). All other heads, whether knife or fluted roll, have staggard edges that crimp the stalk during gathering. This crimping action that occurs with staggard knife or fluted rolls certainly requires more power to operate too. With the lexion's large feederhouse drive pulley and double V belts, these heads can cut in all conditions, at any height, without any fear of overloading and_or failing its feederhouse gearbox header drive system (one heck of a problem with my JD combines). The lexion's cornheads are also built extremely strong, not cantilevered like other makes and still with a front carrier bearing that I don't mind greasing when the head performs as well as it does in the conditions it has to be in - very rigid and stout when having to operate in down corn conditions. Heck, if not buying a lexion combine, I would certainly think about buying their cornhead for another make of combine, they will take less power and cut well enough to satisfy most considering a cornhead with a chopper...cheaper than a chopper head too.