Well I have made my decision. I ordered a Specter 3 point sling from Stubby Tactical.
My reasoning behind this purchase was simply that I wanted my rifle for three gun and for more combat related classes. I don't expect to be doing high speed operator courses but I want the mobility a carry sling offers. I had a chance recently to try out a vickers on a Soccom and I was not impressed. The three point design albeit is more complicated to train with provides the user a little more padding for the bigger rifles. I will give a much better report when it arrives, from what I hear fast shipping is not one of Stubby's specialties.