A few comments...
1) You are now the proud owner of a TF700 running a custom ROM. Congratulations. That means you now need to ask these questions in the ROM section if they are ROM specific, which this is, as OTG is both hardware & software.
2) You also need to state the ROM concerned - we do know which one you hav & to be honest, there is only one, but your thread title doesn't include it and neither does your post.
All this means that I have now had to...
EDIT your thread title
POST this note
MOVE your thread to the right place
Please get it right next time - you've been here long enough to know the drill now.