Turbos vs. regular SNGs (variance)

[KKbluff]

This is mainly a Pokerstars question.

Do the PS Turbos offer more or less variance compared to their normal SNGs?

In my experience (about 100 of each) I tend to find the turbos offer me less variance and more ROI (esp on the hourly rate multitabling)

What does everyone else have to say about this? I would love to know.

EDIT: this is mainly geared towards mid-lower stakes SNGs