are you still using your rope mod on your pair of 940's? I ask because I may decide to give this a try or possibly will try some surgical tubing.
I picked up a pair of these this weekend after intensely trialing them along with a pair of Sony MDR-7520 (the professional version of the MDR-Z1000). After two days of A/B testing them in the store I bought the 7520 hoping the bass would settle down. But after 1 night of burn-in I was not convinced the bass would settle down enough for my tastes and the detail of the 940 kept haunting me. So back to the music store I went for one more A/B comparison and I ended up switching to the 940. I just loved their clarity to much. Once I got them home I have found I do prefer them EQ'd in the bass a bit. But I will try the rope trick if you think that might help a bit.