Advertisement June 2016, I purchased 4 slings from Paul Becker while I was visiting L.A. One was a 3/4" B. smithi and the other was a 1/2" B. emilia. They have been feed 2 times a week and kept at around 75-78 degrees. The B. emilia is a confirmed female at about 2.5" to 2.75" DLS. The B. smithi is about a 1.75" DLS to 2" DLS and is a suspect female. The smithi is going to molt in the next few weeks, she started refusing food about 3 weeks ago and looks terrible. Based on my observation, I will confidently say that B. emilias can have a faster growth rate that B. smiths.