Well Herb, If I had to be honest about it, I'd really have to think about it. IT works fantastically for things like box joints and dovetails used in conjunction with the Incra fence. Superior by far than the original equipment sled Incra provides...yet, now knowing its limitations given the kind of work I like to do, ahhhhhhhhhhhhhhh maybe, probably,, most likely not.. *L*
I have been working on a jig for making miters using the slider..The unit itself comes with a fantastic miter guage (very accurate) and If I can use this to cut multiple pieces at the same time in some fashion, I would have to say absolutely yes, I would..
I can't speak for the woodhaven sled, but I do have the Woodpeckers coping sled and have to say its a great lil sled..with one caviot, You are limited by the depth of the guide that rides along the fence.. Set up is easy and thorough. Securely holding your work piece down! Which for me is a biggie.. the work around for this would be for me to install a mitre bar to the bottom of the sled (easily done) and then make use of the mitre slot on my table...
Either way I don't think you could go wrong with either the Woodhaven or Woodpeckers sled. If you read around the forum regarding coping sleds, there are a ton of them out there and many of them work quite well.
I know, I know, so many choices, so little time