None of the factory shifters had adjustable stops so I don't think it's that big a deal especially if you are not racing.
But, as I stated in my post regarding the Hurst Indy shifter the body is dimpled where the stops go and I drilled and tapped the holes and added the stops to mine.
Going this route is a darn site cheaper than the Competition + at $225 plus another $130 for the installation kit.