EDIT: TGP, out of interest, do you think of Iron Maiden as heavy?
Well, in the grand scheme of Metal, I wouldn't say they're particularly heavy, but they're definitely Metal. I actually think that on the Final Frontier tour, MP chose a pretty bad setlist, because his logic was, "Maiden is Metal, so we should play some of our more metal songs to appeal to them and maybe win over some more fans," but some of the songs that DT played that tour were too heavy and too thrashy compared to Iron Maiden. If he wanted to play songs that would have appealed to Maiden fans, he should've replaced Panic Attack with ITPOE Pt. 1, and Constant Motion with... CIAW or something.
But anyway, the point is, no, I don't think Maiden is that heavy, so I guess instead of saying SC is pretty heavy overall, I should've said, it's pretty Metal, overall. Either way, all I meant was that it's the kind of album that would appeal to the Metal crowd, unlike, say, 8V or SDOIT, where there is a combination of metal songs and softer rock songs.