I realize this will be a contencious issue but whats your thoughts on oils , I used bell Ray in my streetbob for years & seemed to work well but now I have a new Roady , my first service with perth Harley I went with Sreaming Eagle fully sync . now I will do all services myself & was thinking I will go back to semi sync ( for no real reason ) other than Im more used to Bell Ray semi sync... your thoughts ?