Aging of Customer Opening Balances

I am doing a fresh implementation of NetSuite at our company (they have been using NetSuite for 5 years, but NetSuite Professional Services screwed up and failed the initial implementation twice 5 years ago, and they had a consultant come in to try to rehabilitate the second failure, but the state of the system was still so poor when I cam in, I had to recommend a fresh start).

We have decided on a cutover date of 1 January 2025, which coincides with the fiscal year start. My recommendation is to import opening customer (A/R) and vendor (A/P) balances as of 1 Jan 2025 using the closing balances as of 31 Dec 2024 (https://suiteanswers.custhelp.com/app/answers/detail/a_id/33660/loc/en_US).