Hi. I was having really hard time with rear grip last weekend on fairly cold day asphalt track (temperatures around 10-20 Celsius). We run GT class (stock X10 200mm width). I was running Contact tires 28 rear and 40 front and every time I was hitting acceleration button on corner exit rear of the car was crazy and getting into spinning. Everyone was having problems with rear grip at that day. Would anyone know some solution to get the rear more gripy and consequently easier to drive ?