I'm on board with development of either system in the Bay of Campeche/Yucatan and eastern MDR for several reasons
A) We've already seen tropical cyclones in both portions of the basin this year where NWP is trying to sniff out TC activity, in the case of the eastern Atlantic, an usually large number for this point in the season, thus we know the Atlantic is entirely capable of producing a storm in both areas.
B) Both systems already have a well defined tropical wave axis and are relatively easy for NWP to identify and dampen/amplify
C) Tropical Cyclogenesis at least in the case of the storm east of the Antilles is forecast to occur in 48-72 HR (or less) and short and medium term trends in NWP (even the GFS which is becoming more impressed with the eastern MDR system) are becoming more supportive of development.
D) As i mentioned last week, passage of a CCKW over the Atlantic would be liable to help instigate TCG and potentially lead to a relative outbreak of TC activity the 2nd week of August and provide a major boost to the AEW train by increasing low-mid level moisture flux, decreasing upper level westerly wind shear (through concomitant upper level wind fields & destruction of TUTTs by increased latent heating), increasing low level relative vorticity, and also the number of convective triggers and disturbances for TCG...