Several years ago I was out in California and played a round at the old Alastair MacKenzie designed Pasatiempo GC.
In the clubhouse display was a set of Juli Inkster used to win one of her Major Championships with.
As shown in the picture I took, the irons were covered in lead tape.
Most people have been misinformed that lighter means better.
Sure you can swing a lighter club faster but normally that also means to the detriment of your control