Trying to sex a B. Smithi

[castor]

Hello, can you help me sexing this B. Smithi ? The body is 5.5 cm long and the animal is about 4 years. Sadly i throw last molt (i think there was a spermatheca when i open exuviae but the molt was dry and that's my first time trying to sex a tarentula.. Not easy to see ^^)

I'll pict next molt well
What do you think?
Thanks