tbran
Guest
The only thing I have found on hard surfaced bars is they develope a 'tit' that sticks out front and can spear and crack corn. I have never seen a set of hard surfaced bars worn out, yours are ok if they still are rough on top - that is the key to extra capacity. We used to pop the top and use a small hand grinder to remove the leading edge sharp points before corn about every other year. About .52 is the height bet I can remember.