Too much offset?? | Golf Monthly

OK experts - shed some light if possible please!

I understand the principle of having offset clubs, allows more time for the face to square before impact - straighten shots out (?) I believe.

now what happens of after lessons and practice your swing is far better and you don't need the offset so much?

reason i ask is that i've had lessons - improved, gained distance etc but am now noticing that a lot of my shots end up going left, some straight pulls, most after what i believe is a decent swing. Is this the offset closing the face at impact?

any clarification gratefully received.

many thanks,
John.