I know that you can copy/paste clips from the premiere timeline to a AE comp and most things translate perfect, but i didn't know that it worked the other way as well, even clips in precomps came over intact.

For how many years have this "little" feature existed and i didn't know about it?  :-)

An editor wanted an xml/aaf of a commercial i onlined in AE for further tweaks requested from the client. But since AE can't export that i thought about trying to copy/paste to Premiere and was not expecting it to work, but to my surprise it just worked brilliantly... 

just a little tip to those of you who, like me, didn't know this.... thanks Adobe.