I am the proud new owner of a Parabellum Combat Systems PCS 9 pistol that will be SBRed with an A3 stock upon approval. What do people recommend for slings? I have several AR pattern SBRs and I usually go with a Magpul MS3 single point sling but what does everyone else use? I kind of like the old school MP5 3-point sling but is it cumbersome? This will strictly be a range gun for me (and hopefully a sear host eventually).