asymmetrical spinnaker

How much more stress does a asymmetrical put on the rigging. My H23.5 manual, w/fractional rig (no backstay) states I can fly a symmetrical sail. Both tack and luff pulling from the back of the boat. And probably sailing more downwind. With an asymmetrical I would have the tack attached to a...

Hunter 23.5 owner's manual says you can fly a Spinnaker. Wondering if there's more stress on the rigging flying a asymmetrical Spinnaker. No back stay on these boats. So if it can handle a Spinnaker can it handle an asymmetrical Spinnaker?