I just checked again. It is indeed that the events differ a bit in the versions, but the important part (Saruman being able to convince the Black Riders with less than the full truth - and some lying) remains fairly similar.zedturtle wrote: Be aware that there are several extant versions of how Saruman handled that situation; the above is but one possibility (but an awesome possibility).
But while going through that, I also found an interesting complementary bit in version B, which follows largely version A (the originally posted story above) otherwise. It is about Mirkwood in that time (i.e. 3017; shortly before the end of the Third Age) and an era when Dol Guldur was quite strong again (probably at its peak shortly before the planned great war):
The same passage is a treasure trove indeed, as there is also another very informative bit that refers to our former question of how the Dunlanders viewed the orcs with whom they were allied at Helm's Deep:J.R.R. Tolkien wrote: It is thus most likely that the first news of Gollum would be learned by the servants of Dol Guldur after Aragorn entered the Forest [probably somewhere between the Old Road and the Forest Gate]; for though the power of Dol Guldur was supposed to come to an end at the Old Forest Road, its spies were many in the wood.
―Unfinished Tales.IV The Hunt for the Ring (ii)
From this, our supposition that the orcs were probably seen as a necessary evil (and thus tolerated grudgingly) and the Dunlendings weren't aware (or even approved) of Saruman's half-orc breeding program is supported.J.R.R. Tolkien wrote:Some while ago one of Saruman's most trusted servants (yet a ruffianly fellow, an outlaw driven from Dunland, where many said that he had Orcblood) [...]
―Unfinished Tales.IV The Hunt for the Ring (ii)
We are not told for exactly which reason he was cast out from Dunland (being orc-blooded or something else), but the fact that the orc-blood is mentioned in this context suggests that this is seen as something objectionable in itself, independently from other issues. Perhaps not enough to drive you out straight away, but making you suspicious of anything bad that happens around

Cheers
Tolwen