My bet is that they would be off the scale.

"We're probably going to be here for a while, so there's no point letting your blood pressure go right off the scale."

Both sets of problems were simply off the scale, too much to be handled.

On the high side we go right up off the scale.

But if you did test him, I think you'd find he's right off the scale for his age group.

Much was good and the excellent bits were off the scale.

Now she went completely off the scale in the opposite direction.

"The power potential is off the scale," he called up to the captain.

"Seven point six two," he said, reading the marks off the scale.

"Just as well, because you went right off the scale."