I saw that… seems steep… I may improvise and make my own.
Yup, San Franciska 
And I take apart everything. Haven’t taken apart an engine since my VW bug days, but always love a puzzle and understanding what makes things tick 
I will just examine it externally, black-box style at first, I don’t want to ruin the warranty by taking it apart. That should be sufficient to replicate it. But, if there is some special sauce I can’t figure out through external observations and measurements, once the warranty expires that baby will come apart to spill those secrets😂