I can easily get a BBS from my straights everywhere except my chin and upper lip. If I want a BBS in those areas it takes me a long time and a lot of effort to achieve it with a straight. Sometimes on a three pass shave I'll use a DE just on the chin and upper lip for the third pass, to touchup those areas and get them smooth. Frankly, it bothers me to have to do this. Is anyone else doing touchups with a DE?