Think it's more a lack of shear.

A lot of things all coming together to help kick off the CV season early.

Quality of waves coming of Africa for one.
Position of the waves.. usually this time of year (and in June) they are still low, low and get caught in the ITCZ or they crash into Africa.

Spacing of waves, just far enough apart for each to try and develop.

Movement west, forward speed has been slow and steady. Often they shoot off too fast and out run their circulation. Note..a little worried on this way having that problem but this wave seems more like a hybrid wave.

Warm water relatively. Even a few degrees makes a big difference in that region with a good wave rolling off that already has a low pressure system attached and comes off spinning as we say.

Dust... funny thing with dust. Too much can kill it if there is another mitigating factor but sometimes I think a little dust is good. And, the dust storms this year seems to break up easily as the waves crash into them. Some people hold small particles of dust can actually help pull a storm together. The jury is out.

NOTE: This new wave has brought out all the biggies on the board and just for that reason alone it compels us to watch this wave as it is entering a region where it will affect someone .. islands earlier, US Coast possibly later.

Season begins if you ask me.

Bertha might have been a rarity but the Atlantic Season is open and not just for fishing.