Great thread Todd! And brings back memories of "learning" all these do's & don't(s).

Regarding the shut-off location, that's a debate that will forever last as long as we use shut-off valves. Unless you have actually experience a runaway ECU, it's mostly academic for most; and is so rare, most never see it and the potential danger.

The one thing I like to do in regards to fuel system installs, is to run 6mm festo tubing as far as I can to the turbine before reducing to 4mm. I used to run 6mm to the pump, then 4mm out to the engine, but then changed it to obtain the least restrictive fuel system possible. It's very simple to stick a piece of 4mm tubing on the pump outlet (IF it has a small barb) then slide the 6mm tubing over it and safety wire, then run as far as possible.

Well, got run and get my canoe so I can make it from the trailer to the flight line at Mississippi Afterburner!