Pulling with a pet doesn't give Group Bonus even if you are in a full group.
1. Obtain group
2. Send your pet in
3. Kill Mobs .
Add Group Bonus based on how many people are in the Group, not weither or not a Pet pulls or someone else pulls.
Every person who has played a pet class that pulls with a pet knows this.
The Creators of DAoC State it here.
http://darkageofcamelot.com/content/beginners-guide-combat-basics
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                        Issue was invalid: 
                    
                Group bonus isn't the result of being in a group  | 
            
| 12 players say this report is valid, 11 disagree |