Switching from SONAR to Studio One was a breeze for me when I switched over on v3 release. I imagine he will be fast tracking his knowledge, he has been finding stuff out here, like stuff he thought Studio One couldn't do or didn't have, but found out it can and does. I think he will be ramping up his learning and skills behind the scenes. Aba makes a good point about looking from the SONAR perspective, and I guess that any tips he does make regardless of current expertise would be helpful to new converts from SONAR.