The one-sentence position test
Put your copy, a competitor's copy and three customer quotes in front of a model and let it write the sentence a busy buyer would use for each of you.
Here is our homepage copy, our top competitor's homepage copy, and three customer quotes. Write the one sentence a busy buyer in our industry would use to describe each of us to a colleague. If ours is generic or wrong, propose three sharper positions we could defensibly own, with the proof each would require.