board sections

Hi, just been looking at some long boards, I have a custom 7'6 flying carpet but I was looking at an NSP longboard. I prefer custom boards but with it being my first longboard thought I'd go for something stonger?
I'm not sure what the area to the nose is called 'underneath'?
http://tinyurl.com/yralv9
The coloured area on the bottom, am I right in thinking that makes it more stable if you 'noseride' it?
I also assume the bigger nose the easier to get to the front?
http://tinyurl.com/256fbs
That is the other one I was looking at, although the 8'2 seems to have a bigger nose than the 8'6?
Cheers
I'm not sure what the area to the nose is called 'underneath'?
http://tinyurl.com/yralv9
The coloured area on the bottom, am I right in thinking that makes it more stable if you 'noseride' it?
I also assume the bigger nose the easier to get to the front?
http://tinyurl.com/256fbs
That is the other one I was looking at, although the 8'2 seems to have a bigger nose than the 8'6?
Cheers