Considering switching from an Axe Fx II to a Helix rack with controller.  Downsides?  I really love the control with scribble strips, and for live this will be ideal.  Is there a global lead function on Helix yet?  With Axe Fx II I can set a global lead that whenever I press on an active patch again, that's my global lead.  Extremely useful.  Also have reverbs been expanded on the Helix yet?