if you are serious about learning recording you should checkout creativelive.com ad services like nailthemix.com
later is great as you get access to top notch original material so you can reference and compare it to your own material and.
on Creative Live you will find tons of great and very helpful and indepth courses.. like mastering compression and eq, they cover lots of topics and its well presented
also there is tons of free material on the net.. but you need to wade through all the material
for free,
http://therecordingrevolution.com/ offers also great material
https://www.youtube.com/user/recordingrevolution
but as a general matter, the tone of the guitars doesnt matter if the tone of drums and bass are not delivering..
its all about the big picure. and Drums and Bass are setting the foundation of your mix.
if your guitar sound alone is great, it doesnt mean it will transfer great onto a recording
i found myself struggling lots of years bout guitar tone, but the guitar tone wasnt the issue, i was on a wrong road, it always the lack on drums and bass. once i got better with that.
there is no easy solution for that except for dedication and patience
there is not one single rule, but its more a decision about hundreds of small details that will distribute to the whole picture.
sure they are general rules like,
- find the proper amount of gain, but use as less gain as possible with not sound undergained, and instead pick harder, for more punch and clarity
- dont use old and dead sounding strgings
- find the right IR/UR for a well balanced tone
- proper gain staging
- literally use highpass filter almost everywhere
- learn how to hear and notch out distracting frequeny in the frequence spectrum of the recorded guitar tone that will make your sound more definied and less washy
and it the end, its all in the hands, play well and play tight