I think what I have on the guide is right for the PC version. We have a bug where you're not gaining Athletic skill faster working out at the gym, as Chronic said. Thanks for letting me know, but the truth is we don't know for sure that you see increased gains at the gym on the console version, either. You can make it to level 10 going to the gym, but you'd do it faster at home. It would be more time consuming to test on a console.