I tried to clean up the cuts with the sanding disk part of my combination sanding disk/belt sander. It is a Ryobi I got for $99 at Home Depot a couple of years ago on sale. Well, now I know why it was only $99. I could never get the thing to sand the cut perfectly smooth. No matter how I fiddled around with the (very cheap) miter gauge on the sanding disk, it always sanded one end of the cut more than the other so I got a slightly rounded surface. I guess $99 was TOO much to pay or more realistically, I shouldn't have gotten it just because it was cheap.
The cuts aren't bad but I can't think of any way to sand the rough ends of the cut to get an even better fit. Have any of you solved this problem?