The best way to improve technical and mechanical gutiar skill is rigid practice for at least 2 horus a day. This translates to metrinome + charomatic scale over and over again at say 100 tempo. Which is excessively boring.
My favorite way to practice now and better things is to learn an entire album by one of my favorite artists. Learning an album can open you up to some new ideas, with chords, rhythm, song structure, melodies, etc...
It all depends on what you want to be proficient at playing. What style of music you want to learn.
Anyhow combien the two, since palying through one album generally will take about an hour, though it will depend on the amount of songs on it you like and want to play or can play rather. And mechanical exercises are boring but best if done every day for a week or two at medium speeds so that your accuracy is targetted best.
That's my uselsss edvice for this thread.
