Yes, I do. I've had only problems with 2 points. 1 points are great on the mp5k etc.
Ran it on the m4 first, great easy to adjust never got in the way.
Then the mp5 for obvious reasons same thing, easy to maneuver no catches.
The l86 with controls all along the side same thing no problem only enjoyment.
Admittedly however the evo might be a bit too short from sling point to sling point thinking about it. (Such a lack of distance makes them useless anyway)
In the end, just use whatever works for you! In my case 3 point slings.