OBT's are definitely very fast. They're also famous for being teleporters on how fast they are, and they are really aggressive. It's rare to get one that's docile. Mine is an evil one lol.
For the martinique pinktoe, avicularia species are easy to care for and generally docile. They arent too fast, and instead of biting they shoot feces as a defense mechanism. Of course they can still bite but be careful
Slings: Keep them in a pill container, or a container the size 3x their legspan in height. Feed them a cricket leg or pinhead cricket once or twice a week (depending on the size of the T).
Adults: Keep them in a vertical arboreal tank, about a 5-10 gallon is ideal. Have lots of things for them to climb like plants, branches, vines etc. Feed them an adult cricket or dubia roach once a week.