+1. This has been my experience with this yeast as well. Loose foil for the first 3 days of fermentation then throw an airlock on it. Even if a bit finicky, 565 is hands down my favorite saison yeast.
Agreed. Other saison yeasts produce decent beer, but there is no replacing Dupont.
+2. Love Dupont. Having said that I do like 3726 quite a bit and use 3711, too.