I've had the Sig DJ for a couple months now. At first, I found the mids lacking compared to the T5p and so I decided to keep the T5p together with the Sig DJ. However, in recent weeks, the mids seem to be more full with the Sig DJ and I generally prefer the overall sound as opposed to the T5p. It may be just that my brain is now wired to the Sig DJ but I'm so content with it that I have now decided to sell the T5p.
On another note, is it worth replacing the cable with something better? Is anyone using an aftermarket cable?