New engine for 28ft yacht - power or size/weight?

[Scomber]

I'd disagree, Admittedly, I have no personal experience of the Beta 20, but most three cylinder engines are very smooth, like their cousins the 6 cylinders, It's the 120 degree crank angles.

Beta 25 in sadler 29 , no bother v smooth , lighter than old bukh and umph if needed, only a couple hundred quid or so more than beta 20 ,, needed correct prop ,, about 9-10 yrs now.