Just skip the trouble and get a SX3
Then you can feel a quick normal recoil without the whole cachunk feeling of an inertia guns action working. A guy I hunted with last week was on his third benelli. They sent him 2 replacements after the first two wouldn't cycle reliably. Guess what, neither does the third one. Now the store that sold it to him claims he isn't cleaning it properly after he brought it to two separate gunsmiths to make sure it was cleaned right. He let the store that sold it to hims gunsmith clean it, still doesn't cycle worth a crap.
$1300 well spent:barf: