[Abaddon]

This is a broad question, I guess. But I will try and explain it.

I've recently received info from a reliable source about training to failure. Apparently working to failure on most if not all sets in a workout is NOT the way to go about it.

Now, as you know, there's failure and there's failure; on paper it's a very fine line, yet having the right motivation/dietary stimulant/support person(s) can make a big BIG difference.

I've always trained this way, in rough halves:
Reps to the brink of complete failure as often as possible in my major compounds, at the start of the routine (and when you're training solo, the brink is quite stark).
Reps in the high ranges (12-15+ per set) on isolations; not to failure, but high intensity and exhausting.

I'd like to know how other people structure their routines, and how/when/why reps to failure is utilised?

Cheers.