A few months ago I was building a router table and asked about putting a miter slot into it to use with a sled. Several people said they just ran the sled against the fence and found it worked out well. It made sense, so I went that way.
The table is fine, but now I am making the sled and am not sure it still makes sense. On some cuts (say a tongue and groove frame) won't the router bit hit the sled? I suppose you could put a spacer between the sled and workpiece, so the router bit is too high to hit the sled, but that seems like it would ask for inaccuracies.
Am I missing something here?