Any Naylor users out there who can tell me about the Superclub and Superdrive series? How do they compare to one another? Same preamp with different power sections or does the Superdrive have more gain? I just tried an SC38 combo and it sounded great - thick and chewy with a great master volume. You could tell it would just sit perfectly in a mix. It could have used a little more gain and low end for my tastes though... will an SD60 get me there? Also, any info on certain years of these amps that are better then others? Thanks!