I just bought my first mando, an Eastman 505, about a week ago, and am looking into a good strap. I'd like to try one that can be tied underneath the fretboard and see how I like it, but I don't know how to search for one like that. (I also plan on trying out one that attaches via the headstock and it looks like the Banjo Ben Clark General store has one that's about $20.) Any recommendations? By the way, I'd like to find one that isn't too expensive, under $25 preferably. Thanks!