Having real triouble removing firing pin stop from my Para P14. HAve no trouble depressing safety plunger and setting firing pin back. The firing pin stop is another matter. How much preasure should one have to apply to slide the darn thing down. No problem with my Norinco in this regard. On the off chance there is gunk around the stop will some form of degreaser work or will it just make it worse? Want to install new wolf spring.