I use a mixture of peppermint oil (to stimulate the scalp) and castor oil on after I freshly wash my hair and I avoid direct heat (blow dryers, flat irons), so far my edges are growing back at a steady pace :-)
i really like your kinky twists... this transitional style should last you for a while. how long will you keep them? your hair will grow really fast : )
I will probably keep them for 3 months I may be able to extend them once I get a touch up in month 2.