Welcome to the thread and forum, while this is my favorite topic as well. This is the first I've heard of Perilous Plunge's removal and am a bit surprised since it's only 12 years old. Looking at the way Hershey has installed Skyrush, I've never considered a ride removal since where there is a will, there is a way to make it fit. I'm also surprised you think Knotts will get a hyper, and not a giga, since SFMM has a large hyper already, and would need a giga to get "noticed". Technically, Knotss already has a hyper with Xcelerator too. I think what's clear is that big rides are coming to both parks very soon, and can't wait to see how it all develops. THANK YOU very much for the pictures and updates from the West Coast!
I still think giga for knotts and wing-rider for SFMM