For once Bill only a little bit
Removing the choke and increasing the engine mass flow could have reduced intake spillage drag as you suggest - see my post #118
But I don't understand what you mean when you talk about 'bleed drag' What bleed? What sort of drag? How do you think reducing 'drag' (an external force) could 'unleash power from the Bypass' (whatever that might mean)
And of course that has nothing at all to be doing with Peter Kent's question