I love San Pedro for both the plant and effect (haven't had that bitter drink for decades). I think the PT gets a bit bigger too. I started my SP from seed about 36 years ago and still have never seen the flowers. My biggest were about 4.5 feet tall when my first son started toddling around and my wife said 'what happens if he falls into that thing', sigh I cut it up and gave most of it away. Over the years I've given away 50+ feet, but nothing like that outdoor specimen.
An old friend just contacted me a few days ago to remind that his cuttings have put on a few feet and maybe we should go on a trip. Damn, that is a bitter nauseating drink, but you pay up front with the mescaline god and when treated with respect (fasting no alcohol minimum) it can be 'enlightening'. At my age I would only consider it with my oldest and most trusted friends.