If I want to start at HS and hop to MK and want to get LL in both parks, I just buy the LL pass for HS since it is the first park I am going to? Say I want to ride 2 rides with LL at HS and then want to start getting them for MK do I have to wait until I am in the park? Or once I tap into ride #1 at HS I can book one for MK? In theory, if I wanted to to all 4 parks in 1 day would I be able to get the LL at each park without rebuying it?