Hey everyone I know this question has been asked before, but I shall tailor it to my special needs... My current set of strings i have been told are thomasik spirocores, i'm not entirely sure what kind however...they have blue and gold winding at the bottoms, if that helps at all. These strings are alright, and have worked out for me for about three years...but i fear they're starting to go bad, my D string has a heck of a time staying on pitch. I'm looking for a set of strings thats going to sound good for both solo playing and group playing. I'll be needing to have good solo sound for auditions to local youth orchestras, as well as good orchestra sound for the group i'm currently in. I guess my main question would be...what type of thomasik spirocores do i have now? And if i should change, what would you recommend? A link to an online shop would be nice, the local music store is quite overpriced, thus I need to find somewhere else for my strings. My bass is a $1800 chinese plywood bass. It sounds lovely.