fcbayern2011

Hello everyone, I recently joined this forum due to the great insight it offered me while deciding on what shotgun to purchase. As evidenced by the preview, I settled on the Benelli Cordoba. I have a couple questions regarding initial cycling problems (using heavy loads to break in the inertia spring, etc). What specific loads work the best (I'm am new to shotguns so as much detail as possible would be appreciated). Additionally, although highly unnecessary, I was wondering if magazine extension tubes could be attached to the Cordoba. I've looked on Dave's Metal Works and even sent him an email with my question, however, after a week or so, he has yet to respond. Thanks. V/R, Nick