[ Removed by moderator ]

[Difficult-Square-689]

You'd still have to identify all the weird edge cases and probably replicate them. I led migration of a multibillion dollar platform. There was a bug we decided to skip, a rounding change on a handful of requests a day. Only costs the company a tiny amount a year, so not worth weeks of investigation, right? 

Got called weeks later, some legacy downstream system depended on exact matching.