That came out looking sharp and accurate. 
Like you, I also make a lot of jigs, templates, measuring sticks, drawings etc, often in anticipation of making more of the same design. In the end I nearly never do as ambitions rise and I want to improve details and expand the design instead. But IF I wanted to, it is good to know they are there, and I find comfort in that

"The good chair is a task one is never completely done with" Hans Wegner