Though I still have bad running days, my running has been on a gradual incline over the past few years, which came about through practice and by educating myself through running books, blogs and seminars. (rachelheldevans.com)
Plus the gradual incline enables a natural nursing / bottle feeding position. (blog.guguguru.com)
however, be aware that if you start in georgetown it is a gradual incline all the way up to md. it's not terrible, but it is there. (marontherun.com)