When I rode GC it was called cyclone, last time at DW it was called HWS and I had no intention of queuing for it. I banged my head and I considered it "rough", say compared to Corkscrew (Sea Viper), but no where near as bad as some other Arrow Coasters I have ridden, simply because it's so slow and boring that it actually isn't THAT violent.
I smashed my ear really hard on Abyss. Hard. I didn't find it flat our rough but that constant rattle and I got a headache. It just didn't track all that well for a modern coaster, and I don't know if it's the cars or the track. I also need to be honest that I am tall and clear the restraints, my neck was hunched down looking at different things so it was my fault. It still was painful on my neck and shoulders though once I straightened myself up.
Arkham Asylum I only rode as LW, never with the new trains, and I continued to torture myself on the day I was there and bash my head as I thought it was a great coaster (back then we didn't even have things like Superman let alone Rivals LOL). Last time I went to MW the queue was too long so I skipped it.
I mean we can all tolerate different things and are built differently. Abyss is a rough ride, but at least it has a payoff with that airtime hill, the jojo roll and a great drop and pacing
But all these are nothing compared to things like Batman and Robin the Chiller (RIP) before they went to lap bars. I actually had a bleeding ear and went to SFGA first aid (2001) then the next year it was suddenly an amazing ride, albeit with very tight trains for taller folk. Desperado in Vegas was the roughest hyper I ever rode, I have been on it 23 times but I learned to ride it defensively lol. There are very rough steel coasters out there, and yes, compared to THAT, Abyss is not. But Abyss is too rough for an almost 8YO ride. Sorry but it is. That said, now you have wanted to make me ride it again LOL. Peace.