I've not had any issues with stove pipes etc. The csa mount I've got on the rifle is super low relative to the dust cover. I'd love one of those RS units as they're supposed to be substantially lighter but I'll not sure they'd help. I think I just need a lower cant mount to keep eye relief. The gg&g 1199 one seems like the cheapest option and is about a half inch lower than the PEPR at 1.125'' but I'm not sure that it's worth it. It's not an awful cheek weld (just a bit higher than I'd prefer) and it's not like recoil is an issue. I mean, it's a braked poodle shooter, not a big bore bolt gun - though I'm sure I'd shoot it better with a lower mount.