Just a quickie before I get back to the stuff I NEED to be doing. Brown just dropped this off for me, after our new member GTR1 and I worked out the deal
learning all the different shapes of the pentatonic scales and also the standard modes is a very good way to lay a great foundation for improvisation. combine that with the standard arpeggios and you've got a pretty formidable amount of options there. Then you learn how to put them together.