Even if you’re just protecting from overs - which is how I use them too, They sound pretty different if you A/B them. I was very surprised when A/B’ing the new stuff in Wavelab 8 against the precision limiter using it exactly as you said. Everything counts. The attack, release, look ahead, they all sound different. I’ve been using the precision for a while but WL8 unseated it for me and I suspect there’s prob better than that. I have to demo the FabFilter and the Xenon.
By the time a master is “fully cooked” - hitting above -10dbfs RMS even the slightest difference becomes so magnified.