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I never had the improved front shock actuators bitd or the recent alloy upgrades. What was the issue with the original rockers, and what were the changes made? I know the geometry changed; looking for more details.

Can't answer your question directly but did see a video on youtube with two guys who competitively run Topcats in Vintage and other races and they discussed how these made by Bezerk address the issue of Topcat geometry causing the front to get softer as it compresses.

https://bezerk.com.au/topcat-front-shock-rockers/


I ran a Topcat briefly back in day, was given to me by Cecil Schumacher himself when the car first came out and he was here at a Hobby Show in USA promoting a pretty much unknown car and company in this region . I was a kid working at hobby shop and our booth happened to be next to his at the show. He took pity on me and I think was happy for anyone to run the car. I never saw another at my track. For this reason I consider my 14 yr old self briefly factory sponsored by Schumacher