Congratulations on your new Maxus. Do yourself a favor and lose the Hypersonic shells. I have tried a few in my Maxus and I won't do it again. I'm not sure if the receiver of the Maxus (made of alloy) will handle shells with that much speed on a regular basis. You don't need the extra speed to kill a duck or goose, the recoil is punishing, and the cost is ridiculous. In addition to that, I have found that many after-market choke tube manufacturers won't warrantee their product if the shells you are using are faster than 1550 fps. Be careful, you don't want to ruin a new gun.
Benelli - Cordoba (20 ga. & 12 ga.)
Browning - 725 Sporting (12 ga.), Maxus (Hunter & MAX-4 Stalker)
Franchi - Renaissance (20 ga.)