The Lydian mode has always fascinated me. I remember hearing Marty Friedman and sometimes Jason Becker use it when I first got into Cacophony and was absolutely blown away. The way they'd use it was eerie, mystical and sometimes extremely oriental sounding.
Before I put this exercise together I was messing around with some pentatonic with 5 note groupings. I remember Shawn Lane said something along the lines of "Using groups of 5s is a great way to throw the rhythm and predictability of straight quavers and semiquavers" without resorting to triplets or a dumb time signature.
So... I found a cool Lydian shape which happened to sound rather sexy in the key of "C." Keep in mind a few of these notes double up on string changes.
I added a pattern with groupings of 5 notes in straight quavers and hey presto! Lydian delight. I definitely think it has a Marty Friedman vibe.
Try figure out a way to implement this scale into your soloing. It'll definitely spice things up a bit!