Fiberglass is usually stiffer than the plastic, and this usually equates
into better performance. Most paddling will do little more than an
occasional scratch on a glass boat. The light weight is a bonus. Unless
you plan to surf frequently on a boulderey beach, choose the glass.

Where I paddle (Hudson, Mohawk rivers, Northeast lakes, etc) I often have to
launch from concrete boat ramps or rocky shores, so for me plastic is a better
choice. My Pungo is mightily scarred, but I don't really worry about it the way
I would if I had an expensive glass boat.

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