Guitar Nickel Wound piece

Curt Mangan lets you choose

I use Curt Mangan's nickel wound strings since quite a few years, and not only because they are the best sounding nickel strings on the market, but also because I can compose and customize my gauge, which means that I can balance as I want the overall frequencies of the guitar, as well as the feel under my hands, as precisely and effective as I can. I experimented a lot before finding my best choices for my gauge. As far as I know, only C Mangan lets you do that.