I watched Sally Collins video PRECISION PIECING on "The Quilt Show". She recommended Clover Patchwork Pins (Fine). I sent for some and they were great! I also went to her website and ordered her CD Precision Piecing so I could review her suggestions whenever I wanted. I am starting a Jinny Beyer quilt and I intend to pin as I go per Sally's instructions.
http://www.sallycollins.org
http://www.createforless.com/Clover+.../pid50265.aspx