I highly advise not botting on an account you care about. Botting Zulrah is dangerous and you will be banned *sooner* or later. If you are really looking to bot Zulrah, make sure you are using a throw away account that is leveled specifically to kill Zulrah. When botting, I always try to bot when the Jagex office is closed, and not more then 3-5hrs at a time. Also, though many people say it doesn't make a difference, I've had much better success when botting with the Mirror Mode client rather then Stealth Injection, however, you would need VIP or Sponsor in order to use this. Keep in mind though, before buying VIP, Mirror Mode is currently broken and has been for 2 weeks now.