I remember the days of Titan HM and tank had to have at least 4500-5000 HP, and the rest had to have at least 300-3500.

I cleared it the first time with about 4900 HP IIRC. I do know I didn't have full DL gear. And I used food.

Things were a little more of a struggle back then (hahaha! Makes me sound old) and took more patience because people were a lot more squishy.

But I whole heartedly agree that once you enter a dungeon, you should NOT be able to change gear. Or at the very least, not be able to go under the required iLevel.