+1 on the Quicker Clicker. A fatter grip would be nice, but it's still hands down the best mechanical pencil I've ever used, and I've tried some fancy ones. My Kuru Toga stopped rotating and it no longer feeds lead properly. I've never had a QC break on me, I just lose them eventually due to frequent use.
The last time this happened, i dismantled the cone of my Kuru Toga and found a small piece of lead stuck between the dispenser and the "side wall". Cleaned it out, and the pencil was as good as new. Switched to a slightly better brand of pencil lead (Staedtler), and have not seen this problem again.
