Where did you buy your skip-shift eliminator, and what model/manufacturer was it? (There are several different ones).
I bought mine from Speed Inc
http://www.speedinc.com/catagory.cfm?catagory=TransmissionIt works fine on my '09. I've read some concerns on several of the online forums as to whether or not it works on a '10. Apparently some small changes were made with the transmission electronics this year and some people have said the skip shift eliminators don't work correctly, though others have said it works fine on their '10's.
These modules are so inexpensive and take little time to install, so it's probably not a bad idea to buy one and see how it works for you.
I've also heard that if you get a Diablo Predator tune that it eliminates the skip shift.
If you check out some of the dedicated late model forums like the LX forum or Challengerforumz there are a number of threads on this subject and many other interesting ones on new Challenger mods and concerns to learn from.
