I just got this guitar to get into the SG and work on my upgrading/repair skills. I know people say not to put money into a cheap epiphone, but has anyone done anything to theirs to improve the playability/look? I am already going to add some cheap humbucker covers I found on amazon that fit well to work on my soldering. With this guitar having the Epiphone 650R & 700T humbuckers I found the spacing to be 49.2mm and 52mm. Other than that I am going to replace the jack with a switchcraft, upgrade the stock potentiometers, smooth the fret ends, ad a graph tech nut, and possibly upgrade the tuners down the line. Any tips or suggestions?