I've been using Spirocores since I began playing again and I'm sure I could have done much worse. After a brief (1 hour) fling with Helicore Hybrids I'm back to the Spirocores again on my Upton Hybrid bass. In the Helicore's defense, I bought them used and the A string was just WAY too bright. They may have been damaged along the way.
I'm going to give Obligatos a spin to see what they're like. The Spirocores just have that metalic sound, particularly the G up around the heel that bothers me. I'm looking for a more woody tone and hoping they do the trick. Then, if I like them, will they last?
Keeping an eye on that String G.A.S....lol