Great pics!
GADV is my home park, and I really think it's time for GASM to leave. I used to skip it whenever I went unless I brought a guest, but now I go on it whenever I visit since it seems like it's going to close.
I really don't like GASM, or have pity for it, because it's a two-faced ride. My analogy for GASM is a bi-polar pitbull. Sometimes, it runs smoothly to make you feel bad for it. Then, when you're on it again, and rattles you around like some sort of voodoo doll and makes you feel like your head's going to explode.
Depending on what time of day you ride, what train you chose, which seat you chose, which side you're on, the ride can be smooth, rough, rattly, or an ugly mix of all of these. At least Chang will probably be more consistant.
I'll be honest, the only things I'll REALLY miss about GASM are the chain lift sounds, the cool station and queue houses, and the totally nostalgic feel of the whole ride area.