I agree with counter. I think they are the same string.
Another good wound g string is thomastik cf30. Its not as boomy and a little more mellow. I prefer the soloist string because I like that it is louder.
I've got Aquila "reds" in low-G on a soprano pineapple and my Kala concert ... the G strings are not wound, just a bit thicker and, if I remember the "blurb" correctly, the G string is a slightly different composition, to balance the sound.
There is a reason the Fremont soloist is the most popular and widely mentioned wound low G string......it works great. If you want a less chimey tone, more subdued and fundamental then the Thomastik Infeld CF30 is the way to go. These are really the only two “smooth wound” squeak less strings. If you don’t mind some finger noise there are lots of great classical guitar strings as Bill1 mentioned. Anything close to .030” in diameter works well.
A classical guitar D string may also do the job. The choices of classical guitar D strings is almost endless. They are easy to find, almost any guitar shop will have a selection to choose from.
