Hi, I am working with a composer who uses Logic Pro 9 in his composing music for movies. He has a very large template (almost 450 tracks, allot are disabled so it closer to 150 open and working tracks). We have been able to use PL9 in Mac OS 10.6, and 10.7, as well as 10.8.5. He would like to go up to Mavericks and try out Logic Pro X, but he wants to make sure PL9 still works fine. So my question: does anyone have experience using Mavericks and PL9 in a working situation with allot of possible tracks, VEPro, etc? Also, does anyone know which plugins don't work with Mavericks? Is there a list somewhere I can access that you can refer me to?