Mastering tutorial

hi folks check this awesome mastering tutorial:

Great read, i do agree a lot about what he says though. I’ve read pretty much similar in the computer music / future music magazines.

However i only really use mastering to mono my bass and stereo spread my mid’s / highs and to gain volume.

Although what i did notice is that in the mastering tutorial by Phil he said to keep the limiter peaking between 3dB and 6dB where as on this he says not to top 3dB.

This has confused me, i’ve never really heard anything bad in the sound when nearly reaching 6dB, so who’s right? Or really is this another case of neither is right or wrong but mearly a case of personal preferences?