I have sort of been wondering where the line actually is with all mahogany guitars, as I'm sure a SG compared with a LP type would have fairly different behavours. Assuming that the SG200 would be closer to a LP than a SG
My theory (unhampered, as usual, by scientific fact) is that the thick maple top on LPs, SG2000s etc makes a
big difference. The mahogany gives loads of bass and midrange, but the brighter maple balances it out to give a more "neutral" tone.
When it comes to pickups, (Gibson) SGs, Vs, Juniors etc are pretty temperamental as to what will work, but you hardly ever hear someone saying a pickup isn't suited to a Les Paul.
I'm sure there are lots of other factors as well, like the overall weight and the type of neck joint.