I played with a thin Ibanez plectrum, but when I played, I could hear a distinctive crackling of the plectrum on the strings. I've seen more than once musicians playing acoustic guitars with a plectrum, and I didn't hear any noise from it. Then I bought some on Personalized Guitar Picks and a couple of them worked for me. The choice is yours, it also matters what kind of sound you want to achieve… Oh - it's also the material that counts. Too smooth and shiny materials often crumble noticeably into fractions, you get an uneven surface and bumps in the place of grinding, that spoil the sound.