Another newbie question...

Why do cats not use spinnaker bags?

Having sailed quit a few spinnaker dinghies, I have found that my crews are much faster at setting and dropping a kite with a bag than a chute (nearly half as many boat lengths to drop compared with a chute depending on conditions).

I don't understand the nearly 100% acceptance of chutes. Not only do I find them slow but I've found they stretch the sail out of shape very quickly.

Is it just because it's hard to find a place to install a bag?