To wide nose or not to wide nose?

Following on from the low liters debate I wanted to get everyone's opinions and feedback on this question.
For a long time I thought a wide-ish nose was key! Increased Stability, faster entry on waves, more range on waves.
However.. my local beaches tend to typically have big grunty walls of whitewash, which i've found, suck with wide nose board.

I found that the wide nose became a pain in the ass in those conditions as there is more board for the wave to lift up and over throw.
Getting hit by an overhead wall of whitewash as it breaks just lifts the front of the board skyward.

SO! See my pics of my 8'6 sic vs my 8'2 mano. Stupidly narrow nose on the Sic vc full to a point on the Mano.
Which is more stable? In big stuff, i'd take the sic- as the narrow nose slices through the whitewash despite being 'less stable'.

Anyone else find this?