That yeast never finishes low for me under pressure. With ales I leave the spund wide open until I get about 10 points left then close it. Or I cover with foil for the first day.
You need to ferment at a higher temperature once you get part of the way through. Higher pressure needs higher temp. If you ferment at the normal temperature once under pressure you can have issues.
First pour of my Dunkel brewed June 1. This turned out super well. Rich bread, clean finish. Leans malty as expected but balanced overall. Not a hint of roast just richness. Yes it’s foamy, spunding is a science but I’m a history teacher :)