They are certainly popular here in central Texas. The Austin and Round Rock stores can't seem to keep them in stock. Epecially the 10s. Ordering on-line may be the only way to go until the GC buyers get their stuff together.
I put some Cobalts on my hardtail Super Sport and the difference compared to regular Slinky's is remarkable! I'm going Cobalt all the way from now on. My local GC can't keep them on the shelves....especially the hybrids and those are the ones I use the most.
Stuck some 10's on the JPX and they sound and feel fantastic! So much punch to them. My only gripe is that there will probably never be single strings available, so my 62 for my low B will always have to remain nickel
Seems like most all the "reviews" are fairly consistent among users, which is very positive!! I wish there was a little more on this interview with Vai.