Danny was also near exhausted during that previous fight with Cap. He'd just gotten through smashing the entire Wrecking Crew. Back then, he could only use the fist twice a day. Danny was killing himself trying to use the technique.
And he described it as basic, but the speed&power were overwhelming.
Originally posted by Accel
Iron Fist vs Captain America
At first, this would look like good showing for for Cap and a crappy showing for Danny. However, there are a couple of things to consider here:
1.) Earlier the day of this fight, IF had just fought the Wrecking Crew and had used his Iron Fist move once, meaning that he is not at his peak here while Cap is at his peak.
2.) Due to a misunderstanding, Captain America believes that iron Fist deliberately tried to kill Jarvis. Iron Fist, however, knows the truth is holding back the whole fight while Cap is not.
So we have a worn out Iron Fist holding back and STILL holding his own against a fresh, pissed-off Captain America.
http://img51.imageshack.us/img51/8129/cap17en.th.jpg
http://img116.imageshack.us/img116/7871/cap21ly.th.jpg
http://img122.imageshack.us/img122/2946/cap32di.th.jpg