Obviously he didn't race in open class fleet with spinnaker boats. That spinnaker sure it faster around the course, no doubt about it.

30 minutes setting it (spi) up and taking it down ? Nonsense, you just have to work out the right sequence. You really don't need more then 5 minutes either way and then I do it all singlehanded. I can do it faster if I want. Some are even leaving the spi inside the sock and remove it together with the pole before trailering. Leaving the retrieval line attached. When building up the boat they fit the pole with 4 quick knots and then flip the boat to run the retrieval line/halyard up the mast and they are ready to go.

But I found that alot of people are just plain stubborn and stick to their old slow routines. But there is absolutely no need for that.

Wouter