I like to launch a discussion about how to belay a second because I saw it so often that someone used the reverso or ATC for belaying a second in the same way like belaying a leader (rope comes directly from the second climber to the belay person) and I was always taught not to use it in that way. What I was taught was that when you like to use it in the way you use it for belaying a leader you should use a additional karabiner over you, so that the rope comes from the second, goes through the karabiner and back to your belay devise. (clear what I mean???). The reason for it is that when the second falls he directly hangs in your harness and pulls you downwards- really uncomfortable- and additional you have to pull the rope upwards/backwards which doesn't allow you a good control about the rope, does it (I have never used it in that way, maybe I should)?!
(Maybe it is again a good example for country differences?!)
Here are some informations I found when I searched for arguments for using the belay device in this or that way. In non of the manufacturer's instructions the belay was used without the additional karabiner for changing the direction of the rope but neither they said that it is dangerous to use it without that karabiner.
Is it just a thing of preference?
petzl - reverso general web page, with a really good video about how to use it and some general advices:
http://en.petzl.com/petzl/SportProduits?Produit=204
specific notice, with really nice pictures about how to use it:
http://en.petzl.com/ProduitsServices/D1 ... 5500-D.pdf
black diamond - atc general web page:
http://www.bdel.com/gear/belay_rappel_overview.php
unfortunately not as good as the petzl web page. It only explain the self-braking method to belay a second.
trango - B52 geneal web page:
http://www.trango.com/prod.php?id=17
with the instructions, includes the self-braking method and the standard use:
http://www.trango.com/pdfs/B52InstructionSheet.pdf
and a video but unfortunately without how to belay a second:
http://www.youtube.com/watch?v=36Qei9gNLew
A nice small report from somebody who got convinced about using the self-braking method:
http://www.gravsports.com/Gear%20Folder ... _Guide.htm
Aaron

