How to Reset ZG Raid Instance just the mobs not bosses : World of Warcraft General Discussions

Can someone tell me how to reset the raid instance for the trash mobs?
i tried leave party and re invite but cant... i tried inviting others then convert to raid and promote to leader and leave also cannot reset.. i tried logout and all.. but cant... but sometimes, it just resets when i go eat or when i just leave party and relog... why?

Cheers

1. leave instance.
2. disban or leave group.
3. Invite someone that you are not doing the instance with(guildy/friend in ironforge or orgrimmar).
4. thank person you invited for helping reset.
5. leave that group.
6. invite the people your doing the instance with after they leave the isntance and leave the previous group as you did in step 1 and 2.
7. go back in to a fully reset instance.

This works for every instance that isn't savable to. INSTANCES YOU CAN'T DO THIS WITH: MC, Onyxia's lair, BWL, ZG, AQ20, AQ40
If for some reason the instance did not reset then relog and repeat steppes 3-6.

Maybe I should put this up in Guide forums?
Unfortunately this may not be what your looknig for as I over read what you title this thread because this will reset bosses also...I'm sure that isn't a problem?