Good discussion already...I was trying to run some personal recollections and correlations on what occurred here this May and other seasons, but without any data I can't draw any conclusions.
A good discussion of factors influencing the number and possible tracks of stroms is on the TropicalStormRisk.com site.
They are sampling the BH and several other basins. One of those I think is the relative position of the sutropical jet especially from July 1 on. Of course the BH vascillates N/S throughout the summer and I guess a "weak" BH is one that has its mid point further north. If the STJ is shifted south and east it will tend to push that high a little north. Such is the pattern we have now in the GOM and the wetness we have for these few days is because of disturbances along that jet.
All this should relax in a few days. I will wait until late June and see where the BH sems to be digging in then before making any conclusions on its potential influences.

14/8/4