I have an FWB 300S universal with the high sight line. Beautiful rifle and great shooter at 10m. But be advised, it's heavy. I have several CMP 853s with both Montecarlo and sporter stocks and they shoot almost as well as the FWB at 10m, and they're a whole lot lighter for extended shooting sessions. In the FWB's favor is cocking effort with the side lever is much easier than with the 853, and it doesn't take you as far out of shooting position. Definitely upgrade to 753 sights - it's worth the money.
Which stock style do you like better and why? Thanks