Cash days street racing.

I like them both, but you have to realize the costs and risks for each. Th OKC cars are all race now. They'll drive around short distance so there's no solid blocks or external starter drives but those are all spec-built pro chassis with the best in suspension and data logging. On any serious street racing car data logging is the key to being successful.
The MSO cars are a lot slower and more like the typical street cars. Back half deals, some steel race chassis but not top-of-the-line stuff and less for datalogging. I didn't like JJ when the only perspective was the OKC races. And there are significant differences in their approaches to doing a race. But the MSO show has let him grow on me. He's been through a lot, making some bad choices, etc. and keeps getting back up. Those cars are much more like what you'll find on the streets now. We used arm drop when I was doing it but that was long before cell phones and small cameras. I don't ever recall any issues with "jumping" which seems to be why things evolved away from it.