flatfinger
Use every dam bit!
Understanding why katz reccomends a standardized method of a repeatable " home base" to " calibrate" you mixing from doesn't change the fact that eventually, the end user is going to be listening at many different volumes.
whatever level you should choose as your mixing home base. it's pure folly to not change up and check it at different volumes( or different days , for that matter)

whatever level you should choose as your mixing home base. it's pure folly to not change up and check it at different volumes( or different days , for that matter)

......... If your trying to accomplish big things, hire a mastering studio(any of those guys around here?)..........if your trying to present a great cd to sell, on a budget, and not trying to get signed, have fun and do your best........and send it off to cdbaby!