In reply to shaun walby:
I've got a full multi row RSS set up, etc, etc, etc (blah, blah).
But, rarely use it nowadays - mostly go hand held, manual exposure, shoot RAW (deal with WB in LR4), manual focus, loads of overlap, funky used of Grad NDs if needed.
Develop, match WB, & 'match exposure' in LR4, export as either 16 bit Tiff or jpg (depending on how bothered I am), and then Stitch in AutoPanoPro.
Import back into LR4 for final developing.