I was cutting some small individual letters and had a problem with the blade clearance and getting a decent cut. Since my saw will not allow for a normal type of zero clearance insert, and I was desperate, I took a piece of plywood sanded it down to 320 grit and waxed and buffed it a couple times. Then I put it on the saw cut a slit down it and my probs were solved. It waxed up really nicely to where I think it is actually smoother than the saws table. I just hold it on with a couple clamps that remove easily. An added benefit is that when my blade starts to get dull during normal use, instead of changing the blade I slap the insert on and now I have fresh teeth from the same blade cus it sits higher. Not suggesting this for anyone else, but it works for me and I thought it was kinda cool.
Bob