I have Phil's rack on my 08, with a Monokey V46. All is good, GF very happy with the provided support.
Just for reference, she has experience traveling on BMW F800GS, K1600GT/L, R1200RT, and some more, all with top case. She likes the rear of the Kawi the best, R1200RT a good second for seating/support comfort, but hated the gearbox. K1600 third because the rear seat is too high for her (she's 5 feet 9 inches tall) but the top case position is fine.
F800 means "sorry, tonight I have a migraine"
top case or not.