Hey guys ran the e4 last weekend for the first time. Ran asphalt outdoor med grip, big sweeping track. I started with the kit setup and it felt soft and the backend wanted to kick out. so i put xray springs on stiffen it up a little. And added 1mm shim under the rear turnbuckle on the bulkhead to get some more traction. It somehow got crazy steering with the stiffer springs on the front. i am also running a r9 body. later guys