When you say clamp grove are you talking about the feather board? If so then it depends on how much adjustment your feather board has. You want to be able to hold narrow stock tight to the fence so say you are working with a 3/4" piece of wood. You would position your fence so that it would hold the wood tight. That would determine where you would put your miter track. Don't worry about wide boards you can hold them by hand. When using the miter gauge (usually for doing the ends of rails) you want the miter gauge close enough so that the wood can be held without pivoting. You can attach a narrow board to the miter gauge to bring it right up to the fence for stability. My miter track is about 6" from the fence.