OTOH, this is more or less how clients themselves expect to be billed so if you deviate too much without any logical explanation, they will simply go elsewhere.
Again, very much depends on the context. Contract engineering that maps roughly to n FTE is often as you suggest, consulting rarely.
OTOH, this is more or less how clients themselves expect to be billed so if you deviate too much without any logical explanation, they will simply go elsewhere.