Feeling a little crazy, I bought an old MTD shredder (Model 243.650) About 1975, I think. Tearing it down, while it has a chute for feeding branches, I found that it had no blades. It relies on "flails" to simply beat the wood into submission. A couple of these are broken. They are only 1/4" steel and I can make replacements. Question: Am I wasting my time? I suspect this is only good for leaves, pine needles etc.