Demolition vs. Toughness

[Starlight08]

Mastered my nades at not.lvl 25 & now I got 4 pts left over & not sure where to use it in the Passive Skills. I already got Determination & Ignore Pain maxed, got 1 pt in Demolition currently & 0 in Toughness.

Just wonder if anyone knows how good/big is the area effect of cannons is Demolition at rank 5? If I were to fire a firebrand at a side of a ship, would the whole side of the ship catch fire? Or is it like if I'm trying to aim for a section of the ship that's weak already coz its on fire but miss it terribly & hit the water, would it still count as me hitting the ship? I'm not sure what this "area of effect" is all about.... I mean I notice it when I throw nades but not too sure how it effect cannons. It sounds kinda life if I'm trying to shoot sails off, and miss, but somehow it counts as me hitting it.

And how is Toughness at rank 4 (since that's all the pts I got), is it really noticable that it decreases the amount of damage ur ship takes in normal sailing or is it only effective in SvS?