Had a taster of the london pride today, it looks to have finished fermenting. Its down from 1048 to 1013 so that makes it about 4.7 % and spot on with the bottle version.
It has an emormous malty, toffee nose which is just what i was looking for. Nice amount of residual sweetness also. It leaves a lingering taste of hops on the toungue which is maybe down to the target

(its certainlly not an unpleasant taste though).
Looking at my recipe again it would seem that i added an equivalent weight of target and challenger, where as with grahams recipe he gets an equal amount of bittering from the challenger and target.
When i do this again im going to change the hopping from
90 mins
target 11 % 14 g = 17.2 IBU
Challenger 5.6 % 14g = 8.8 IBU
to
90 mins
Target 11 % 10g = 12.3 IBU
Challenger 5.6 % 22g = 13.8 IBU