Your right Ty.
I only started using the stuff here and there a year or so ago, but I really like it for certain applications. I really like the way it fills the grain too. If one is looking for strength over a larger area I'd figure that it should be overlapped though. After applying it I'll usually give it at least a couple of sloppy wet coats of 50/50, letting it dry completely in between before I even touch it with sandpaper. Then get into it real good with the sandpaper, knocking the seam completely down. Add some more clear and sand with some finer paper and you should be darn close at that point. Personally, I like the way it sands better than medium silkspan.