Originally posted by BruhMan
True, but that absurd speed was a combination of his extremis power AND the armor he created for it. BE didn't have the blistering speed feats of Extremis and the Black and Gold didn't even have access to Bleeding edge or Extremis(based only on what was shown.)
It's because - after Ellis - writers didn't give much shit about that (very major) upgrade.
Hell, you can even see a time-displaced version of Captain America kicking Extremis IM's butt in Avengers/Invaders series...
It was still there, though. BE was meant to be an upgrade to Extremis. And Tony was shown switching between the Black-and-Gold and BE suits in Warzone just fine, so he didn't get rid of Extremis in his system.
You should also stop dissing that Black-and-Gold suit - the Punisher had no major problems kicking ass when in WM suit, yet he could barely operate the Black-and-Gold one... just as Stark couldn't [properly] operate the Extremis suit when he lost the virus. 😛
It's also a good moment to remind you that you were wrong about Osborn and his usage of the repulsor technology... the lack of thereof, actually.
All stated in the main TIIM book.