Am sure I saw/heard Kamal say that IR is the best in the business, but had to opt for someoneelse coz of the producer (for DASA) - so donno why Kamal didnt opt for IR for MY - there is no way we can speculate the reasons for the same
as for MY itself, given that Kamal-IR chemistry has worked like magic all the time, I wonder if Kamal wud be able to extract stuff from ARR the same way he cud do from IR ! this is not to downgrade what ARR is capable of, but that special chemistry between IR and Kamal cannot be replaced IMHO
anyways, lets wait and see what happens and how the output is going to be
as for the speculated rift between IR and Kamal, I doubt if that would ever happen