I don't even know what the IWC is, so I'm not much help. But to be honest, I wouldn't do 2 for 1 for another steel model or a TT (as much as I like the bluesy and the LV-C).
If you're crazy about the IWC, I might suggest trading in the sub for one of those two. That way you've got some diversity and a change up for those times when you want a little something different.
