I bought a gleaner K combine that looks to be in good condition to harvest the small amount of acreage I have around the house. When it arrived I started going over inspecting it. I looked in the straw walkers, and notice that some of the spikey sections in the straw walker are gone. I called the man that sold it to me and he said they aren"t missing. I said but there are drill holes on the straw walkers where the spikey metal pieces go. He said that some models had less some had more and just depend on the crop. Is this true or should they start in the front going all the way to the back? To be more exact there are three sections of long walkers. The edges of each walker are spikey and they are there, but the center of each section only has three to 4 spikes in the front and none half way and all the way to the back.