B&M Stand-Up coasters - how are they aging?

I dont think the trains hold up very well they seem to rattle a lot (vortex at pc)

I thought IW was great. Never miss it

I don't understand how anyone can consider Mantis or Chang rough whatsoever...I didn't feel *one* headbang on either.  Call me crazy, but I thought they rode just as smoothly as any other B&M.
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-Kurt Borowiak
"Hold on tight, with all your might, and enjoy your flight on the Raven!"