Flat bottomed boat for beaching was one of the check boxes on our list of must haves when we bought the M 5 years back. In fact, I thought of calling her "The BeachHouse" because we tend to turn our boat into one pretty much everywhere we go. There is nothing to it and nothing to be concerned about if you take a few things into consideration.
If you are on the larger of the two tides for the day, don't dry at the very top of the tide, or on a King tide
If you are in a very protected spot where you are not going to get any large waves, you can just go bow in up to the sand. You will need a ladder to hang over the bow. We have a plastic pool ladder bought from Kmart which we store on the bulkhead in the head when not in use. You just nose up to the beach, cut your engine and raise motor, walk forward with your ladder. hang her over the bow, and climb down and put your anchor on the beach and wait for the tide to go away.
Yes, I have learnt that you should not dry out on a very steep beach

(see photo below). I got caught out by a fast running tide in a creek on Frazer Island and ended up with a lot of water in the boat which came in through the rudder dam drain holes. (They don't have them on Xs). But this is NOT going to happen anywhere where you would normally be drying out as it means the boat is going to be on a very uncomfortable angle. Your average sloping beach, It just isn't something to worry about, but if you still are, make yourself a couple of little plugs that you can stick in the rudder dam drain holes.
However the most common and sensible way to "Dry Out" and the way you wont have to worry about water in the boat, is stern in, which of course, gives you some protection from waves and makes climbing into and out of the boat through the stern much easier, with no ladder required. Protected areas, you can do this anywhere. But if its a fairly open stretch of water you are on and you may end up with a 30 knot onshore breeze later on, you should give it a miss

or if giant gin palaces like to scoot by at 30 knots, once again, this isn't a place to dry out.
So all you do, is get someone on the bow ready to drop an anchor. When you are about 50 metres or so out, start reversing in. Raise your helm seat about now. Don't forget to put your rudders up ( I'v done it once and had to rebuild one of the cracked rudders

). Depending on the beach, I often put a fairly long anchor line out so I can pull myself out away from the beach when the tide floats me again but that isn't really needed.
About 10 or more meters out, get your partner to drop the anchor and pay out the rode. When you are getting shallow, raise your motor as much as you can and keep coming in and when real shallow, cut it, raise it, and step off into the water. Shout to your partner to cleat the anchor line off. I keep my stern anchor in the motor well ready to just pick up and walk up the beach with it, or you can just take a line and tie off to a tree or whatever. Then go adjust the bow anchor line if needed.
Wait for the tide to go away and you have your beachhouse.

It really is a simple process and not something to be concerned about. I would not recommend it if its a very tight area you have to reverse into, until you have done it a fair bit and got used to it.
