User blog comment:Mrlmm0605/Let's Talk Bleach! - Part 6: alphabet 1/@comment-25121259-20150705121328

Perhaps interesting to note, is that when Jugram and Bazz were kids, Bazz gave him a button with the letter "B" to signify that he is now one of his men and friends under his wing. Even now he still, in a sense, fights under the banner of "B", as the Sernritter "B". Whether there is any deeper meaning behind it, is hard to say.

As to the reason why Jugo switches power with Q-Emperor, well, it might be because of the range of influence and potency of it ? Indifference to Jugo that can only influence those around him, the Q-Emperor is connected to all Quincy at all times, so in turn he could use that power on them all (assuming that it is more specialized, or at least works beside his own). As the more powerful one, that power could also be stronger, especially now that he has gotten a great boost in power. So even though Askin is running away right now, at dawn he might be the one doing the chasing...