I had grand visions of getting Igor markups for trails to delete, fences to add, etc. around the stable, but then I wasn't very efficient that week....
I'm not sure if we have many/any parks near Detroit we can push much more than 2.5 km or so without having it devolve into road runs. One of the big races (a recent WOC long?) had a 4 km leg!
Your final bit to #11 was the easiest way to find it.
Trail around to F was definitely faster. Esp. if you considered leaving 13 north by going smoothly down the hill (to where I deleted the original last red C to enable your run) - at that point you were practically at the eastmost part of that trail loop.
Barbara and I had great fun watching people high step through that stable area grass though!
I think the most impressive part of your run was the super quick correction at 2 - it's really easy to have those sorts of things blow up.
I don't think trail from 3-4 was as fast as straight. Woods move alright there.