I have to say, that nearly every time I have compared the aloft winds in the OFP to the actual winds experienced, they've been pretty much spot on!
I`ve found that too - especially in the last year, or so . . maybe its something to do with global roasting or maybe their computors are better than before.( I am still beating them at predicting the weather though., am scoring 8 out of ten bang on to their 7 out of ten).