First thing I'd try, if you have an option, is putting that very DID on a different mod. Then putting another atty setup on the legacy. You definitely want to be sure which has the short.
Now, if its the DID, it can be several things. You may just nudge a coil up or down and find improvement. Here that can mean that there was one spot that wasn't oxidized and depending on wick size, could be a short. I didn't read really far back, as there is definitely something in the air on several threads today (must be the water), but are you experiencing hot spots?
It works fine on an ego twist, and negative on the hot spots, recently switched to 30 ga and have no problems in that department
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