I used to use Blue on everything, but I had a few saws come to me (460s) that just would shake the muffler bolts out any way, so I started using the Red, and it worked.
So now I use Red on everything, and don't have any problem removing bolts. Every now and then it will make some of the larger bolts difficult to remove, but I just go back and forth a couple of times and they come out no problem.
It may be rare, but having muffler bolts come loose when you are using a saw is a Royal PITA! I don't see any downside to using the Red, and I have had basically ZERO problems with loose screws since I started using it.
Bottom Line … It works for me w/o any issues, so I'm going to keep on using it … in OEM and AM saws.