I'd like to add just one thing to this thread..
There is absolutely no guarantee that what he has used actually is ostarine. There is as far as I know still only one legit source for this stuff. It might be anything, could be a prohormone or a regular methylated steroid suspended in the oil he's taking.
Add to this that he took 50mg a day and yeah...
those that don't feel any difference between 12.5 and 25mg, yeah... are you sure you're not just eating 0.5ml of oil a day?