Size deformation using the insert brush

[system]

How can i avoid this size deformation using the insert brush? I need to create smooth size regretion and keep roundness. Please help me to adjust it.

Attachments

[Zeddie]

right after you start to pull the insert mesh out, hold down the shift key. that allows a more accurate angle and shape.

[system]

Thank you very much, but it is not exactly what I was asking about.

This one I get making cylinder one by one with insert brush, but how can I achieve the same result with Curve Mode on and using the Size Curve Falloff without any distortions?