I too have a x52(pro) and am working on a profile. I've found some problems though. The first problem i've got is that Lock On dos'nt seem to allow me to program axis's.The second is Multi keys seem to stick.The third is Mode 2 will only operate after you have pressed Mode 1 on the same button.
Mabey i'm doing something wrong but I've been over and over the manual and according to it I seem to be doing everything right?
If I do manage to figure it out I would be glad to help you. On the same note I would appreciate any help too.