I just dug out my latest subsea book & reviewed it & agree with you about your configuration. Having said that i have one question to ask. Why in the world would anyone want to hang off half a million pounds on well stack with 10,000, 15,000 or possibly more PSI staring them in the face? That’s kind of like taking on Billy the kid in a gun fight with a 50 pound sack of potatoes on your back.