After doing this for a while, here are some I realizations:
- Quad tracking can be a bit overkill depending of the part so I'm not systematically doing this anymore. Double tracking is often enough and feels tighter. Many modern guys (Gojira comes to mind) seems to be going in this direction.
- A lot of the modern stuff is edited, for which the DI is pretty essential: it allows you to see clearly where the attack transient is. In other words, get the DI not only for possible reamping but also for editing.
- I monitor wet but always record a track dry and mono (KPA output set to "Mod mono" to exclude the reverb/delays). If I am really attached to my effects choice (modulations/reverbs/delays), I record a wet track as well for them as well as a reference (but still always a dry/mono one). Depending of the style, if I can avoid that responsibility of getting the perfect effect sounds, I do it and leave all this to the guy who enjoys tweaking plugins.
- Keep track of what profile/guitar/pickup selection you used on certain parts if you can - I sometimes had to punch in afterwards because the arrangement changed or something.
- Work on your parts before the recording as sometimes the thickness you might be looking for comes from adding a track playing different voicing etc. Also obviously if you have the music ahead of time, practice your parts to perfection before your session, maybe compose your solos if necessary.
- Once you are done, give up any expectations on "sounding great" because once the mix guy takes over, it's all out of your control!
- Be ready to face some producers with aversion to digital stuff who tell you to play in that random amp sitting in the corner because "the real thing is sooo much better". If they don't like your tone, they'll 100% blame Kemper to reinforce their belief. Just go with it and wait till you're outta there to roll your eyes.