Cab, these DS-2s were several years old and they worked fine for me to 193mph. The next time I got in the car it would "only" go 180mph...someone had broken the ceramic on the #1 plug, which fell away resulting in running on a dead cylinder. At 15:1, I couldn't feel it missing, but it killed that piston. The engine was already broke when they put me back in the car to go over 200mph, but that run did it in for sure. The 193mph run was uneventful until the chute didn't open. A lot of cars there do not run front brakes, only rears, including this car, but it slow and stopped before I ran out of track on the long course (7 miles) in 2016.