One thing I consider a huge advantage with Tersa is that the knives change so quickly. I change them out before they are totally trashed and keep them around and pop back in when I have questionable rough stock, like dirty, footprints, etc. First pass with the old knives and then put the new one back in.

If you would like a set for this right off of the get go PM me an address and I will send you a set. Mine are 520's so you may have to cut, but that is not a big deal.