I just picked up my 1014 today and can't wait to try it out. It's rainy and sloppy out here for the first time in 6 months so i'll have to sit here and stare at it at least until the deluge slows down. I see all the talk about +4 extensions...All I've seen is +2's. Does the +4 extend past the end of the barrel? What ather mods are common on these to improve performance? If any...