not that much, like a 2-3 weeks maybe, and yes i did a research but nobody said that i have to keep old shells, for me i senseless to keep empty shells when mods is whats matters, well EOD anyway cause it looks like im the only one and there is no chance for understanding:) All i get is "u r dumb" but that ive get from my wife already, no need to reasure me here;)