hi congrates for being a proud owner of this beautiful cat.
I saw your video. The recoil is definately too strong, but I think the problem also has to do with the jagdpanther's supension being too soft. Therefore, once it recoil the whole chassis will rock to and fro. When mine first came, the front suspension was so weak that when I pressed the front chassis down, it couldn't recover at all. If yours have the same problem, you can either get stronger springs or modify the spring hole postions.