i learned that my size did not limit the strength that i could build; in fact it was insane to discover how strong i could become. that’s not how you do it! checked out the black and decker site on this saw….awesome. since it is on my helmet, i can't see it to know that. ‘the spirit level success™ system is brilliant. i think one of the biggest issues with this whole process is the pressure we put on ourselves. your dentist may be able to recommend ways for you to reduce the risk of poor oral health. 