I dont think you can set a beach cat to self tend in anything but the lightest winds.

Now check this out. No exaggeration here and Bill Mattson is my witness, crew to authenticate the following:

In a wind funnel portion of the Santa Barbara Channel the channel , known as Windy Lane, we had been sailing for about 7 hours without a biology break; no nourishment, no potty break. For the past 3 hours we had been beating up windy lane, 25 miles off shore, in seas that had become 10' with the occasional 12 footers for the past 3 hours. The wind was blowing 25+ and we wanted to continue beating for another couple of hours. To use the head, we would have to strip off our pfd's, trap harnesses, spray suits. Bill also had a wet suit on under the spray suit.

We stopped the boat long enough to do this and to grab a bit of nourishment and a bottle of juice. We drifted downwind 1/4 mile but our bows launched squarely over each wave. The boat was stable enough to stand on it, as long as you held on to a shroud for dear life.

Watching a tight mainsail invert in 25 knots winds with 10' seas while planted in irons makes you pucker. I get butterflies in my stomach just remembering it. But it works!

When bigger wind and waves are present you do need to continue to steer the boat otherwise you could tack and be blown over.

The I20 I've found is impossible to park. There is a constant need to be attentive. The boat will tack suddenly and take off if you don't have the tiller in your hand.