After going four nights last week, the best route we found was the following (with S&S):
-Finnegans S&S - make sure you are up by the front around 5:35 as they can let out early
-Hit Exorcist first thing
-Wait by the Transformers entrance area until they open up the barricades, then head straight to Halloween 2
-Wait for ToA to open (they usually do a "pre-queue" where they will let you in the line to wait until the official opening)
-Hit Texas Chainsaw Massacre (we were able to do this twice in a row with zero wait the three nights we did this route)
-Head to Krampus (was 15-25 min wait at this point each night)
We were able to do all of this (6 run-thrus, 5 houses) before 7:30pm each night (Wed, Thurs and Fri).