Pugs, I didn't get to see your photos, they aren't coming up on my computer for some reason?
I've kept and bred Australian tarantulas for a long time, problem with that was I got too complacent and yes I have been bitten. For the record, I have rarely handled them and once was only because it was necessary. I feel I 'know' my girls very well...but put them in a different situation, such as new enclosure, and they are a different spider for a while and extremely reactive to situations. Breeding them tends to be a little hands on and gets quite tense at times...I was supposed to breed 'Ellie' last year but due to her extremely defensive and confident nature I did not, it would have no doubt ended with her up someones arm in a bid to run for it and she would have no hesitation in biting, she's bad enough when I just open the lid to her enclosure most of the time, she doesn't like it at all and usually stands up, hisses very loudly at me and hangs her fangs right out. She's the only spider I'm a little afraid of lol
The adults usually only moult once a year, the spiderlings moult every month or so as they are growing fast.