I would personally leave out the X-Lean, as it is a completely different type of glucocorticoid antagonist than found in RMP and Drive. Combined, RPM and Drive boast a potent combination of lipolytic and thermogenic agents,
catabolic and anti-catabolic nutrients, as well as powerful antioxidants. I'll go for an RPM-and-Drive stack.
I do not imply X-Lean is inferior, by the way. I just meant it would be more appropriate in a different type of stack.
Good will choosing