For anything other than a quarry (or small lake) this doesnt really pan out.
Getting in and out off a boat requires an understanding boat captain, waddling around in full widemount, or putting tanks on in the water (with attendant risks or either dropping them or smashing into the side of the boat in rougher water as they are passed down to you)
Getting in and out at any kind of beach site requires you to done and doff tanks in the surf - including stashing unclipped ones somehow so they don't get bashed to pieces (or lost). Plus at least double the trips through the surf zone.
Knock yourself out with new toys but SM isnt any easier despite the perception/hype.