just picked it up, and dissassembled it. It does not appear to have any weights; in fact, I cannot see other than finish what the difference is between a standard model. Mine has fixed sights, and is two tone. And the rubbery, Pachmayr grips.
as for the 17 rounders, I intended that for another thought other than competition. Just wanted to see if others had good/bad experiences with these mags. Word around my friends is that they work well. Thanks for the heads up though! Now I need to find some factory flush fitting mags, 10s or 13s, whatever i can find.