Okay, now I have some results: I have TASed your new route now, and it turned out to be slightly slower than the published TAS, but it was really close. The route in the published TAS is roughly 0.6 seconds faster than your route. I have uploaded the input file
here (I stopped at the ferry-mean, since the two runs will look almost identical after that part). I can upload the run to youtube if you would prefer that. Please take a look at the run and tell me if I understood your route correctly.
EDIT: Hold on, I missed that at this point I have used the orb in your route but not in the published TAS. I better go through to the end to get a good comparison...
EDIT2: Okay, it turns out that your route is slightly faster (by 17 frames = 0.28s), and this includes me getting awful luck on the lightnings. Taking into accound the bad luck I had on your route compared to the published TAS, I would say that your route is roughly 0.5 seconds faster than the published run. New input file:
http://dehacked.2y.net/microstorage.php/info/1504859591/shadowgate_new_route.fm2