Can I still get a useful comp if the review date moved up?

Yes, but the question becomes which comp. Fidelity scales with time, so a rush comp is production-real on fewer dimensions. The move is to match the one dimension the decision turns on to production and let the rest be representative.

What can a roughly ten-day comp deliver?

Production-real on the single aspect that matters most, color on the actual substrate, or finish, or structural performance, while the rest stays representative. It gives a real answer to the specific question the review is about, on time.

What can’t a ten-day comp be?

Fully production-matched across structure, material, finish, and color at once. That’s a two-to-three-week build. A ten-day comp that tries to match everything ends up close on all of it and real on none, which looks finished but proves nothing.

What if the decision needs everything to be production-real?

Then move the date, not the fidelity. Some calls, a pre-tooling commitment or a shopper study, can’t be made honestly on a partial comp. For those, a slipped date is safer than a confident wrong answer built on a comp that only looked complete.