Intensity is a better word, but it doesn't allow me to make a cool acronym...AISF
The vest hole is a great idea and I am confident there would be no problems working through any problems with a solid and ambidextrous location.
I really like the Novak sights and am glad they went with them. The sights were nothing more than me dissappointed with the inconsistency we got with them, which is why we cut them back. Since then I have felt like I got to have my cake and eat it too.
Checkering is one of those things that I haven't taken sides with yet. There are days when I am grateful for them and then there are days when I am cursing them. The good news is now there are options for folks to choose from that can hopefully meet everyone's personality.
As for your last comment, more than me...