Wow, I've had a few epiphanies on my way producing drum & bass, a few of the larger ones were:
- How to make a (good) reese. This was a huge one.
- How to modulate a reese (well). Another huge one.
- How to process my drums to make them tighter.
- Using a spectrum analyzer to help mix down the track.
- And a more recent one, stereo imaging to make the track sound "bigger" and give it more space.
Of course, I've had little epiphanies on how to make certain synth sounds and such, but these ones were definitely crucial to my growth as a drum & bass producer. I'll doubtlessly be having many more epiphanies in the future.