Hi, I must tell you that you are not the only one using spirocore solo... Ive been using spirocore solo since 2004 until last year in my solo bass. I play mostly solo repertoire and I like the spiros because they give me many overtones in every note and many volume. Ive always fighting against the akward bow sensation (those strings are really hard to bow!!) but with much work and patience I became used to play them ok. I was using orig. flatchrom and they are very good strings but they are a little bit darker and thiker.
Last year Ive decided to try something new, so I ordered a Velvet compas solo set. This strings are very good and they sound very close to spiros but there are some differences:
They are a little bit more flexible, they have the same amount of overtones, and harmonics but they are much more easy to bow. The sound is a little bit soft and warm but they have almost the same volume that spiros.
ive been playing with first and second Velvet and 3rd 4th spiros (because they have more overtones and I play many bottesini stuff). You can watch some of my videos on youtube (
www.youtube.com/mgandres). there are some tango videos too but there I played with another instrument. Totally different stuff...
I didn`t tryed the evahs or belcanto in solo tunning... I have a set of belcantos in my orch bass and I don`t like those at all!!!!
At least they are not working with that instrument...