I recently rooted my Hudl and all appears well. Just noticed however that certain apps e.g. kindle don't store books on the sd card, nor does the camera store images there. On my android phone this happened automatically, or maybe a one-time pop up where do you want to store etc. How do I make the Hudl use the sd card? Card seems OK, I can write to it from pc.
Just before posting this I took the card out and re-seated it and the Hudl is now showing these folders in the sd card (using root explorer) but if i look at it on pc Windows file manager says they are in internal memory and shows only 2 folders in the sd card, data and lost.dir, data folder just has 1 file relating to titanium backup.