This has been posted a long time ago. Just posting again so that new members and see it. (Old thread is deleted)
TIP (Will need) - This release macro helps you release quickly when bound to a key.
Code:/run RePopMe()
First - Queue for an arena.
Second - Depending on queue time, using 1 min for example, you will want to die AFTER the queue pops!
Thirdly - Once the queue pops somehow die quickly.
Fourthly - Once you get the release option, DON'T CLICK it.
Fifthly - Put your mouse over the 'Enter Battle' key.
Then push the release macro WHILE click on 'Enter Battle'.
Try to put a 1-50ms click between the release -> 'Enter Battle'
Worked for me tons! Should work for you!
Dan