Nice thumbpick for MD

I've been using these http://www.elderly.com/accessories/names/herco-medium-gauge-flatpick/thumbpick--HE112.htm for years on guitar (I just use my fingernails for my fingers on guitar) I tried in on my Md and *really* liked how it works out. It brings out the melody when clawhammering or frailing while leaving the droned notes played with the flesh of the 1st and 2nd instead of my nails for a softer sound that doesn't compete with the melody line.

Any others have any experience with these? If not, give 'em a shot - def worth it.