if i recall the issue correctly, thor's getting more of the business end of things prior to realizing that the fight putting people in danger. after he realizes it, it's still getting the business end of things. the set up, of course, was that hulk threatened a woman if thor didn't ditch mjolnir. but other than that, i don't recall hulk getting some kind of upper hand (except for mjolnir being tossed) due to hulk's actions. there was one moment where thor realizes he's about to hit a bus full of people, and that's where he realizes the carnage he/hulk are creating. but keep in mind that he's realizing this as he just got casually thrown into said bus.
i remember picking that issue up in my (relative) youth. i thought "this is great. thor doesn't quit." i still have the same impression of that issue, and since it was written by stan, i give it a lot of weight in the thor/hulk debates.
Thor was getting the upperhand so Hulk threatened to hurt a woman so Thor would throw away the hammer. The second Thor threw the hammer, the Hulk blindsided Thor and continued to press on. That's not really a fair situation. When Thor got his bearing and the hammer returned to him, he threw the hammer again and wanted to continue fighting without it. But the Hulk left.