I run 2200 on one bike, sora on another. Once they're settled in, they require nearly no adjustment. If you're finding you need to adjust a lot, it means the cables never took a seat. It's not atypical to find quite old bikes that just have never been shifted much. ... I shift... a lot... so I break in the cables and housings pretty quickly.

after 75-150miles everythings sorted out, and.. I haven't had to touch the adjusters on my Dawes for two years now. The Penna needs it's final adjustment.

the "quality" of the shift gear, doesn't affect the parts that wear, and cause derailer drift. If you never break in the housing and cables, your dura ace shifters are going to skip gears and do bad things just as well as some microshift nashbar specials.