Hi all,
found a great thread about grouping newly made queens, that you want to use to defend harass or spread creep:
http://www.teamliquid.net/forum/viewmessage.php?topic_id=420454
&
http://www.reddit.com/r/allthingszerg/comments/1hvdjk/new_zerg_trick/ - some interesting comments and more tips
Good post. Also Lowko has a good video on youtube around queen injections. Couple this with his other videos on control groups and its really useful.
Queen injects:
http://www.youtube.com/watch?v=n_PIWnMrBHc
Control groups:
http://www.youtube.com/watch?v=8l0Q4TRQUYE
I'm still practicing on this, but can see the potential.