Spindle gouges with shallow flutes are not designed to "reach into" the hollows of a bowl and will perform disappointingly. You need to be able to rub the bevel through the entire cut and you'll notice that on a bowl gouge the angle of the bevel at the end of the tool is very steep as compared to a spindle gouge. A nice resource about bowl gouges is located at: http://www.peterchild.co.uk/info1/sflute.htm . Compare the flute of your gouges to the pictures in this article...if they are significantly shallower in profile, than you have spindle gouges and they are not really the right tool for bowl turning. Pick up a 3/8" bowl gouge to learn with and then adjust to a larger one when appropriate once you get the hang of it.
My preference is for a bowl gouge ground "somewhat" like E near the bottom of the page, although mine (and Ellsworth grind) isn't ground back quite so much on the sides. This form of tool is not only incredibly versatile, but it also is easier to keep the bevel rubbing inside of a bowl which reduces the chance of a catch. On the outside, the varying edge provides many, many options for cutting from super agressive to a very fine shearing cut at a 45º angle for final finishing of the surface.
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The most expensive tool is the one you buy "cheaply" and often...