Looking for recommendations on a solid variable speed immersion blender to give the smoothest blend (for pureeing, etc., not to make smoothies). I keep seeing the Breville get recommended (due to the 15 speed settings) but the motor seems pretty light on power (200w or less). I like the Kitchenaid 5 speed since it comes with the different heads, but same issue on power. The All Clad has a 600w motor, but I can't tell how many speeds it has, and Braun MultiQuick 7 and 9 have a 450w motor, but I wasn't sure how well they worked. The Braun is interesting because it has a "how hard you hold down" variable speed button. Any tips would be appreciated!