As stated above, the Fast and Fright Lane in the past is unlimited as to how many times you can use it on each house.
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@deadbydawn I like to sit in the scarezones which you might not have a ton of time to do in one night, but you can get by without it for a whirlwind trip
I am not sure how they are running things this year with COVID considerations, but if you can be there and near the front for the opening scareamony, I would highly recommend it. That is something truly fun/special about the event.