Ok, bumping this.
I removed the references to Shaymin-S. So if there are no further comments this analysis is finished.
I didn't have to change up the EV spread for Brave Bat, since the one I had also gives a ~60% chance to OHKO a Max HP Machamp with Stealth Rock, as you do 88-100%. So, I think the EV spread was sufficient already. (Who knew Shaymin-S was nearly as bulky as Machamp???? Stealth Rock makes a HUGE difference!!!!)
@ AnimeAlex. The reason why we don't put Black Sludge on analysis IIRC is because if someone uses Trick and grabs your Black Sludge, they can then trick it on to one of your walls. Since we don't use Item clause, theres no reason not to use Leftovers :-D.
@Colonel M. About the Brave Bird / Heat Wave / HP Ground set: Crobat doesn't have the offense to be splitting EVs, especially since he has to devote them all to Speed first. Heat Wave can beat Skarmory and Forretress in theory, but usually Taunt is good enough to disable them. I guess you can use it on Scizor, but he is dealing massive damage with CB Bullet Punch before you attack anyway. Hidden Power Ground also won't even OHKO Heatan unless you use Maximum attack, which grants you a 100% chance to OHKO Naive ScarfTran with Stealth Rock. However, he is going to hit you for a minimum 75% anyway. If you aren't fighting -SpDef Heatran, you probably won't KO. Anyway, you get my drift... Crobat lacks the offenses to do such a thing.