I will be needing a sling for the upcoming deer season. I have a MCM A5 with flush cups on the left hand side. I don't have any idea about flush cups or the slings that go with them. I have looked at a few like TAB and others. I want to be able to carry the rifle slung across my chest while still hunting and be able to slowly bring it up to fire if need be. No snap shooting as it is a heavy barrel 243 and not suited IMHO for that. I have regular slings, but ordering one blind is outside my comfort level. What should I look at, for, tips, recommendations?