  We study operators in the sl(2) sector of N=4 SYM in the generalised scaling
limit, where the spin is large and the length of the operator scales with the
logarithm of the spin. At leading order in the large spin expansion the scaling
dimension at strong coupling is given in terms of the free energy of the O(6)
model. We investigate the first subleading corrections to the scaling dimension
and find that these too can be derived from the O(6) model in the strong
coupling limit.
