a little off-topic but maybe someone can answer this for me

in windows 2003 and later on basic disks i run diskpart and i can create the 64k offset for performance reasons. with dynamic and GPT disks it never worked for me. i looked in the help section but never found much useful info on the difference between the three, except that basic disks are there for backward compatibility. or why the 64k offset would not create on the dynamic of GPT