Have you tried WD’s wdidle3 utility?
If anyone can provide a dump of MOD 02 before and after applying wdidle3, I believe I will be able to apply this “fix” to all Scorpio models. BTW, the idle3 timer is not written to the same byte position in every drive. MOD 02 is divided into records, each with a specific function. The record numbers appear to be consistent, but their locations and lengths can vary.