Well danita and mako089,
You both could be right..
But IHC2A could also be under the impression that the double stat for pilots is still in effect... I have seen more people saying even today that for instance a fighterplane must have good fighter and air stats, whilst this has been patched away long ago...
On the other hand, the bit about the engy stat on a scout having effect on your engy ability on your BB, is just total nonsense..
Nonetheless interesting theory from IHC2A, albeit that I will not follow his advice.