I recently bought a set of Spirocore Orchestra lights. But the set that was delivered are listed as Orchestra 3885OW, not regular S42, which I usually buy. I play a 1941 Epiphone 3/4 size which us what the strings are listed for...3/4 size. What is the difference in sound/playability between the 3885OW and reg S42 orchestra lights. The price was about $40.00 less than the S42 as well. So far they seem a little brighter, maybe a little "thinner" sounding, but that's all I can discern at the moment. Comments appreciated!