One thing that threw me for a loop when I started bear tanking was dealing with skills both on and off the gcd. For bears your typical on gcd rotation is Mangle -> lacerate -> lacerate -> Mangle -> lacerate -> lacerate -> Mangle -> lacerate -> swipe -> Mangle -> swipe -> swipe -> Mangle -> swipe -> lacerate -> .... On boss fights I do start with berserk and just Mangle until berserk is down then start into the normal rotation.
you basically get 2 gcds between every mangle. Initially you always use lacerate until you get a 5 stack. Once the 5 stack is up I always use swipe between mangles hitting lacerate every once in a while to keep a 5 stack up. Where it gets tricky is weaving in maul. Because maul is used on swing and is off the gcd there are times where you actually have to hit 2 buttons at once. This is the same with heroic strike. Coming from being a healer and caster dps I never had to push a button more than once per gcd. It took a bit to learn to maintain the perfect on gcd sequence and always make sure maul was queued for every swing.
you basically get 2 gcds between every mangle. Initially you always use lacerate until you get a 5 stack. Once the 5 stack is up I always use swipe between mangles hitting lacerate every once in a while to keep a 5 stack up. Where it gets tricky is weaving in maul. Because maul is used on swing and is off the gcd there are times where you actually have to hit 2 buttons at once. This is the same with heroic strike. Coming from being a healer and caster dps I never had to push a button more than once per gcd. It took a bit to learn to maintain the perfect on gcd sequence and always make sure maul was queued for every swing.