Don't worry about the limitations too much. They're changing anyways. The 320 has an old MLDW of 145,505 but the Airbus isn't that precise on its on displays. I argued this until I was blue in the face. But, it is changing and airplanes are getting new placards with 145,500. I don't know if the manuals are updated yet. I think Comply sent me new updates but I haven't looked yet.

Do know the flows! These are nearly day one items. Know those before FLL and everything will fall into place in training. There's also an A320 Guide app that is well worth the $40. You will be asked every singe light on every panel. It's a great way to learn those on a mobile device.

Welcome aboard!