Has anyone successfully used these? Either I just can't make it work or something. If you have successfully used them what tooth count did you use for the jig saw blade? Maybe my red oak is just so hard it is difficult to cope. I had some crown installed in my two story foyer and the carpenter that installed it used these very successfully. You Tube videos make it look easy too.
What is the secret?
Thanks
Link for what I am talking about. https://www.rockler.com/easycoper-for-crown-molding