My understanding from what you said is that you don't recommend moving from GB ROM straight to the ICS modified ROM such as NEAT. Which totally make sense.
My main point for going to GB before flashing NEAT was to defuse the BrickBug problem. If you have heard of this nasty fella, the GB ROMs are immune to this bug. If you still think it's unnecessary please give me a yell.
Good point. Now I think why I was planning to do that

Maybe to have the "install from the zip" in my kernel then I can install the NEAT. since I'll lose this option if I put stock ROM and not too many ROMs these days have Odin tar files.
As I said I might be totally wrong. I am 2 weeks old in this field.
Thanks again for your help