Not completely unrealistic - this from one of the sponsors is 2lb6 with 38mm edges, 63mm spine and a full profile. Drop the spine height and concave, probably wouldn't be too far away! http://custombats.co.uk/cbforum/index.php?topic=40725.0
If that is a full profile i will eat my bat!!!
Working with density at B3 it is possible but as others have alluded too other things have to be sacrificed..(spine height or over dried).
that Jedi is not full.(not saying it not a great bat James makes a good bat indeed...
now the biggest bat I have see pound for pound is 2.7.1oz 42mm edge and a full 68mm profile which is a ss which even B3 with the density couldn't replicate even at 340 density it was around 5 mm smaller on the spine and 7-9mm shorter on the spine..
Would also suspect it from a oversized cleft too..
I have seen clefts as low as 340 density which is as low as they tend to go and your struggling.
now the biggest bat I have see pound for pound is 2.7.1oz 42mm edge and a full 68mm profile which is a ss which even B3 with the density couldn't replicate even at 340 density it was around 5 mm smaller on the spine and 7-9mm shorter on the spine.