That was actually very quick impressions for another member back in April haha, take it with a mound full of salt (or a spoonful like earlier stated).
In the end it all trickles down to your personal preferences. I liked the E17+E9 combo best since warm sound + more controlled sound stage on a Q701 is really more to my liking. I'm not a fan of the Q701 mainly because of the soundstage.
I'll verify my past claims tomorrow if you'd like.
But yes, I recall reading a few people mention the E17 without the E9 (E09K did not exist then) sounded better. That said, that's their preference and YMMV.
Funny because other sources will say that the E9 is a decent combo for the Q701 (hence the bundle of E9 + Q701 being sold in some stores).