Maybe another solution ;)

I don't how you have drawn your object

Here with the Blend
Like this you can test all generative curves

With your object
Extrude each oval (careful to kill the 2 curves and faces for have only edges!
Make the Blend : during it move the points where you want for move the seam!
Of course at the end kill the ovoïd cylinders! ;) (not shown here)