I have an Argentine Contract FN HiPower with the internal type extractor. At the range, it had a lot of extractor problems. It didn't seem to be magazine related, as the same mags worked fine in another HP. Should I just get a C&S extractor to install, or are there other things I should try first? I also wondered if a stronger recoil spring would be a good idea.(Seems a little weak compared to the new one I have.)