It’s cool if you disagree but all of my suggestions are based on experience (as I know yours are as well) and I know what’s worked for me. One thing you’re missing is that when the pcv closes under boost you’re still getting blow by passed the rings and now it has nowhere (or very limited area) to escape. The springs in PCV valves are hardly the most reliable and valves themselves are rarely a sealed device. The easiest way to make everything happy with boost is vent the valve cover with large hoses to a catch can. It’s as simple as that.