FWIW I had a Powerbond on my SC car and it was fine, a little heavier than stock. Stock was 8.8lbs and the Powerbond was 10.2lbs. I currently have the Romac Gold on my turbo car. It was a bit lighter than stock at 6.6lbs. It also works fine. Unless you are going full tilt it’s probably not worth the money for the Romac Gold vs the Powerbond but they do sell a less expensive Romac (Red I believe). That’s my 0.02.