what about water balast ?
If there is adequate wind, you simply sail. Under sail, the wind in the sails gives the boat a steadier motion. If there is not enough wind to sail and you are stuck in a residual chop you have a real problem with the typical outboard installation since the prop will be near surface or even out of the water, much of the time which is hard on the engine and on your nerves. I personally believe that inboards are the only way to go on a cruising boat, but of course there is a real diversity of opinion on this subject.