I have always stated it is good to have both types of metering. VU rms and digital peak. Back in the days I sometimes felt there was not enough interest in peak instantaneous levels with tape machines and things, it was always about rms. When we shifted over to digital they got all careful about peak metering and seemed to have pushed rms metering aside. Most DAW's now are showing some form of rms indicator too. You just have to use it. It is the actual body of the signal and the most important part so why not meter it nice.
Rms and peak combined they tell the whole story. Once some signals get real fast, transient and short, the VU is not going to show much. Peak readings mean more.
But you can put back the rms metering and keep that consistent across all parts of your signal flow and let the heights of the peaks vary. None of them will bring the clip light on. The headroom of the system will take care of it. You still need some distance between the loudest peak in the recording and 0 dB FS though. I don't see 10dB as being bad. 6 dB is cutting it fine in case something gets loud and it can. It is not hard to add 6 dB to a snare hit.