I have two drastically different swings for irons and woods/driver.
My very steep, upright swing translates great in my irons - but I have to flatten things out and slow down to hit my driver or fairways straight.
Some days the both work, some one or the other and unfortunately some days neither.
On one of my best days for both swings recently - my putter got lost and and I shot an even 90 with 38 strokes from the flatstick
Nothing like 3-putting for bogey over and over again.
That is why we all love this game, every round is a new challenge.