maximum number of lines allowed on an invoice?

SA 9067 seems to say it's 500 lines from the UI and 5,000 from CSV import or web services. https://netsuite.custhelp.com/app/answers/detail/a_id/9067 I can only imagine the page load times for a record with 500 lines.

I do not recommend going into thousands if you want any sort of line level scripting to ever work properly

Thanks!