Hola
@Jackwu696,
We meet again, my good friend.... a-haaaa!!!

lol
Sorry, I think I mis-understood your original post (and the OP 1st post too). Although I think I've finally got it, the penny has finally DROPPED!!!

lol
So basically, the PreLoad PIT that I used at first, the one that had 45Mb PreLoad and 4GB data... Basically restores some of the 500Mb of normal PreLoad and shared somewhere else in system. But is not compatible with many roms.... So....
1) Stock PIT - Is when you've had enough of all the d*cking around, you gonna sell ya Note to a stranger, so you return it back to a 2GB /Data partition and a 500MB /PreLoad
2) 45Mb PreLoad PIT - Is when you want to increase your /Data from 2GB to 4GB/6GB/8GB/10GB/12GB, but also reduce your 500MB /PreLoad down to 45Mb so that the rest of the 455Mb is shared else where on the phone. However this PIT (despite its added storage benefit, is not all that compatible with newer ROMS)
3) Non-PreLoad PIT - Actually does still contain the 500Mb /PreLoad, and is as close to stock PIT as can be, just it increases the measly 2GB /Data, to 4GB/6GB/8GB/10GB/12GB... It keeps the 500Mb /PreLoad, but you can flash Stock and Custom roms with this...??
Think I've got it now..... LOL
Thanks, Lister