So long - and thanks for all the fish!
It doesn't really work that way due to the multiplier versus star rating. Theoretically you can due Dunesfolk for Dinner until about rank 56 on 5 star and still max SP on hounds (1120 I think), same way you can still to Levinshower to rank 43 on 5 stars and max SP on rams (which is 640 I believe). So long as there is a 10 level rank difference between you and the target mobs the leve is still good a valid.
Yes, it really DOES work that way. The reason Dunesfolk for Dinner specifically gives so much SP is that the wolves are what you call "party monsters", and have a 2.0x SP multiplier on them. Many other monsters also have this in the wild, such as Giant Crabs, Skeletons, Peistes, Raptors, and more. It's just a GREAT levequest because of that specific point.
Leve linking is just a really good way of getting SP, no matter what level you are and what leve you're doing. Dunesfolk for Dinner is just amazing because of the SP modifier on the wolves.