I wonder if Marshhawk ever got his issue resolved?
Yesterday, there was a guy at the range who was complaining that his Yugo SKS was having feeding/ejection problems. I go to look at his rifle and notice that he is using those 5 and 40 round duckbill mags. I told him that duckbill mags were notorious for feeding problems, and he would have much better results with the 10 round fixed box. I also warned him that his rifle may be illegal due to the fact that he changed its configuration from the initial imported configuration (imported rifle with detachable mags in excess of 10 rounds is a no-no). After I told him that, he wanted to argue with me saying that the dealer told him it was okay to do that, and that is when I walked away without telling him that his gas tube was shut off.