Wow!
You would not believe the **** I took on another forum when I asked about the need for a WDH.
I was going to kill all their children basically.
I figured the same, within all specs, about 85% capacity on the worst spec. So when I said I was going to drive my new TT home from the dealer without a WDH, the S hit the fan. I’m a killer on the road, to quote Jim Morrison and the bulk of the replying posters!
I did get a great deal on a used WDH from the dealer but otherwise I would have done my test first.
