Hi I just joined today new . Just picked up a used 2016 SG Pro last week . I'm a beginner learning all the ins and outs of guitars and gear. Wile researching it got me wondering. On the Pro models say less Paul, ES 339,ES 355 ext . Do they all share the same guts as in pick ups, pots and wiring ? I wondering if there's a big difference in the sound of each one to another.