That 88% figure used here is for a really big loading. Like running Prime 95 & FAH both at the same time or burn k7.

But from what I've read morphling 1 is mostly running the 3D marks and other bench marks when he's been running his system all out. These programs don't use as high a percentage so the heat output should be lower would it not?

I don't know much about O/Cing but this seems to make sense to me.