Going to piggyback on this thread instead of starting a new one.

I have a quick question about mount farming that is multiboxing adjacent.

If I am farming for a mount in old raids, is there a better or worse chance for a mount to drop if I run it solo as opposed to running it with my multiboxed tunes? i.e....will I have a different chance for a mount to drop if I run the raid 5 times with different characters opposed to boxing all 5 characters in the same instance run?

Thanks!