It is really time for Line6 to put out an optimization manual that helps anyone using any rig to avoid getting anything but the best sounds out of the Helix. I have been trying to use Combo amp front end and effects returns and havent been able to reproduce any soudn shown on demos. This is keeping me and others from buying a helix because we want proof that the sounds are achievable. 1399 to 2000 dollars is a lot to spend to haev pay restocking fees because you cant stand how it sound. Many buyers claim they are the bext thing since slice bread. Help us get there and save some customers. Other competitors like headrush are as bad, Boss Gt1000 stilll hasnt resolved the process sound issue and isnt as flexible as the helix. So help us out. All I get on the blogs are vague answers.