Yep, It's really quick. While their still small it happens in 2 molts.
I actually had 2 T's missing legs at the same time, both around 4/5 cm. They both molted twice in in a really short period of time and were back to normal before any one else even noticed. It did raise some question marks when one of the daughters B.boehmei molted twice in the same space of time as the wife B.emilia of the same size had one molt.
I'm open to correction but I think in the larger spiders it takes a molt or two longer.
Sometimes I think my sole purpose in life is to serve as a warning to others