I prefer tight lash cams. We don't race very often when it is cold, generally quite the opposite in fact. I will continue to just use my halogen light warmer if needed. We do heat the oil but it does nothing to change the lash settings in the motor when the water is cold. Not a big deal to me. I don't need to start the car that cold very often. Of course where it is now it may be a much bigger issue.