Skittles, my 4 year old BRB, is about 5.5 ft long and seems to be very chill. She rarely moves about, I just see her in one of her few hides every time I look in. I try to handle her once every 10 days or so. She's very hard to handle though. She's always wanting to explore and never wrap or sit still. Idk if she's uncomfortable with me or wanting to finally get out and about and explore. Hopefully she'll get more comfortable with me and prefer to hang out as she spends more time with me. I've had her less than 6 months.