First thermoforming mold

Hi guys,

I have problem designing a mold, I want some advice to achieve the right modeling technique.

I tried to fix it doing sweep and  boundary boss but that seems to be so long and complicated and I don't get the right shape.

I have some pictures describing my problem.

You can see the axis of revolution in the attachment, I want to keep it and at the same time I want to follow the lines ( I mean not to create an angle)

I want the part to be "continues". The line of discontinuity in picture C2.

Please help me I want  something like in the 4th picture but without boundary or sweep only revolution!!

Thanks in advance.

SolidworksPlastics And Mold Design