I like Russian for several reasons, one being their varroa resistance which is partly due to their characteristic of creating occassional brood dearths at the begining of a large to moderate honey flow so that at the end of the honey flow there is less bees so that any onset of bad weather can be survived by the bees (Italians have the charateristic of growing and growing so that adverse weather can actually kill off the hive due to starvation, even in the middle of summer).
I split several of my my hives into 4 nucs which I then transported 500 miles to my older brother's placewith the help of my youngest brother. We put the hives down where he wanted them, opened them up and after a brief few minutes of bees in the air they all settled down and got back to routine. Neither I nor my 2 brothers were stung and none of us were wearing veils or gloves.
I have found the Russians to be extremely gentle bees but with the same tendency as other varities of bees whose temperment varies with weather and other considerations.
I would bet that if a beekeeper were to analyze when his bees were proddy verses the times they are calm has much to do with the weather, pre or post storm, humidity, temperature, etc.