Pirastro Perpetual Bass E 2,10m

I use this string for arco playing, as part of the whole set, lately. It's looser, in a gut way, & in a gut-like direction, which I love than traditional arco steel we all know. As an extension string it speaks quickly, is articulate, & cuts through in the orchestra. As a con, & lover of gut, I'd love to see a slightly thicker version, perhaps adding more belly to the sound, as a bottom E, whilst keeping the same tension. I'm looking forward to see how it ages & settles in.