The new gmail compose experience has advantages but also drawbacks, the most obvious being the fact that it uses different paradigms for new emails and for replies. Let me explain: if I click the compose button, I get a pop-up window on the right corner of the screen which is OK, since I can browse other emails or web content without loosing the composition context. But when I choose the reply option, the compose window uses the old composition style, i.e.: gets mingled in the middle the mail text. This gets even worst when replying in the context of a conversation.
So my question is: 1) why using two different styles of composition, and 2) is there a way to reply using the same style.
N.B.: I've seen replies to this question that suggest pressing Shift and click Reply: this is not a solution, because in this case I get a new browser window with the same garbled text, and not the compose pop-up.