I was recently made aware of a possible problem when renewing the FOID. I submitted my renewel about two months prior to the expiration. I know the state quickly cashed my check since it already cleared the bank. As of yet I haven't physically recieved my new card. So I went to the local fun shop and put money on a new toy, well the dealer said there is a possiblity of a denial from the state. The reason? Well as soon as you submit your renewel form, the state issues you a new FOID number and the old one becomes invalid. So your old card will not be good anymore even though you haven't reached your actual expiration date. Since the state is taking it's sweet time mailing me my new card, I may be in a sort of FOID limbo. The gunshop owner was cool and aware of this problem, so the worst I'll have to do is fill out the forms again, my gripe is with the poor system this state has. I would not have had this problem if I waited until it actually expired, so I ended up getting screwed out of a month. So I guess the lesson is don't renew until the very last minute.