No short cuts here based on your description. You will need to do a FULL service.
The "TimeZone Watch School" Part II has the step by step tear down, cleaning and lube for ETA 28xx. There is a PDF of it floating around the internet.
Ball and Doxa watches with their ETA based movements are rated OVER 5000 G's...
I know many people who play Tennis, Racketball with Rolex's without issue.
I have done ADV Motorcycle riding and off road dirt-bike rides with Seiko, Sector, and Vostok without incident. I have also Mountain Biked with numerous 21J and ETA REPS.
I used the old MBW case, drilled for an actual HEV, drilled lugs, reshaped CG's. I like my result. I went with the InGod Rail Dial however
Gen Service Crystal and Insert, Tudor Hands.
DW is very inconsistent. I have had a nearly identical experience as the OP. However, I have been "in friendly contact" with DW, I am still "waiting" on parts from November 2010!!! I feel this hobby is a lot like gambling, and have not/would not file a PP dispute.
Moral of the story, we are dealing with language barriers and Quality Control issues. Especially with DW it seems.
Not for me. I said it before, but that thing looks more like something out of a Seiko design studio than Rolex. Lazy Rolex designers: "Lets just make it Maxi and throw in a Retro Hand -- Balance be damned".
Kudos's however to Josh and company for doing a good replica...
I have a feeling the crown is unusable. Looking at the blow to the case/crown area. Also, someone in Alaska already hooked me up with a bracelet . Putting the money elsewhere.
Welcome.
Judging by your name you are into VW Corrado's / G-Ladders ???
Ever auto-x @ Qualcomm stadium? I ran a Scirocco there a couple of times in the 90's.