I just did some reamping with a Dual and a Triple.  One for the left side and one for the right.  The Dual was a combo, yes, but I ran it into a Mesa cab with 30's.  I found the triple to be a little tighter in the bass range but also it had a more 'scooped' sound.  The dual had more mid bass and was looser I guess but I preferred it too.  I can see how it would be better for leads cause of this.  Maybe James liked that aspect.  But you know they have changed those amps for different years.  I want to get a dual and a triple, both new, and A/B them  I'm really liking how that amp really cuts through the mix.  
I also borrowed a Cobra for this project and I liked playing it myself more than the Mesa, but I liked the Mesa in the mix more. 
Colin