I have an Line 6 M9 coming to me pretty soon and I'm a bit lost on how the heck to use it. For the most part I got it to replace my FM4 and to get some useful features from the other stomp boxes. The problem is that I love to run my fm4 before my dirt and my flanges/phasers/delays after my dirt. I was wondering if anyone had an idea on how I can use the fm4 stuff before the dirt and then for another song use the other stuff after dirt? Would a ls-2 somehow fix this problem?