forgive me for jumping in but i have witnessed DMF flying the temp a few times and stolen one factor.
it would seem to me that when flying into a storm at 6k, he would appear an easy traget.
BUT, everytime i've seen him low in the temp he is travelling very, VERY fast.
my only conclusion is that he may prep an attack by diving at least a few thousand feet before icon range to give the impession of a low slow tempest, that is infact a bloody fast tempest with the option to engage or climb way above his opponent(s) being present at all times.
could be wrong here but i have found this stolen, assumed technique to be extremely effective and very disconcerting to enemies who think they have you 'out E'd'.
add to this Levi's inhuman ACM skill and you have a plane you want to avoid like the plauge....
batfink