My B.smithi did finally molt...and of course the molt was rather twisted up and only the legs were in good shape so I didn't think it was good to use for sexing purposes.

However, I did recently get some pictures of the underside of my T. Unfortunately its through glass..so the pictures ended up rather speckled...so not sure if they are clear enough for sexing. Camera seems able to pick up dust and water spots better than I can.