Lower silhouette, and a stable platform in calm seas if you have ever sailed a Laser in 15 Knts+ on a run that will give a good demonstration of what a high metacentric height feels like in a swell. For turning it was not great in high powered vessels as opposed to a low height like our friend the Invincible which could turn on a sixpence (A good example if you sail is think roll-tack ie heeling the boat to turn a high metacentric hieght will not heel therefore turn slower))Besides making capsizing less likely, what is the advantage to a high(er) metacentric height? Will it reduce rolling motion? Can the ship sustain harder turns? Are there any other practical benefits?
The lower silouette enabled a better armoured raft like the German ships which proved hard to sink the downside was the vunerable Bow and stern sections outside the bulkhead inevitably flooded when penetrated due to low freeboard reducing turning performance further.