G'Day Fellers I have 4 low profile bars on two rows on the sep end, this system seems to work! think I was tolled that two low profile bars act like one reverses only a lot less aggressive. This is also true for crops that are tender, in that lentils and chickpeas, beans that are dry (were down to between 8 and 13 % moisture here) they don't need that extra bash backwards with a revers bar, that's also why I like the low bars.