Thin picks. I use them for strumming my acoustic (see my rating on the acoustic guitar, Baton Rouge X11S/FJE-SCR )
because they're capable of withstanding some abuse. They're flexible enough to strum with well, yet I haven't torn one yet. That's not the norm with me and thins.
And the price can't be beat.
I see no reason at all to not get these, and I'll get them again when I run through the 300+ I have purchased. It's possible they'll outlive me and I'll have to will them to someone I care about.
Get them.