Pressure Cooker Hard-Boiled Eggs

I have a presto stove top pressure cooker and an induction stove. I must say these eggs all peeled perfectly, no doubt about it. But the time is too long, and I haven't figured out the best time yet. I did 3 at 6 minutes and 3 at 5 minutes, let both sit off heat for 5 minutes, and all the yolks had the green film. I did like the extra firmness in the whites, but next time I'll do 3 minutes and see how it does. I'm starting my timer when steam just begins to seep out, and I turned the burner down to keep it at that level of pressure.

I typically do not leave reviews, I am the one who usually reads them, but I felt like I should review this for those of you that have an old-style pressure cooker. I have an antique presto for court that was belonged to an old friend. I was intrigued by pressure cooking eggs to hard boil them and I almost purchased an instant pot just for that reason. My daughter raises chickens, and always has fresh eggs. They are typically impossible to hard boil and peel. As an experiment I placed 10 eggs in the bottom of my pressure cooker on the rack, added 2 cups of cold water, 1 teaspoon of salt and a fourth of a cup of white vinegar. I brought them to pressure, and when the jiggler started rocking, timed them for three minutes. I took them off the heat and allowed it to sit for five minutes. I quick released the steam, and placed them in water and ice for 10 minutes. They are perfect. Peeled like a dream.

Not sure what I did wrong- followed directions exactly and three of my eggs cracked while cooking (see pic). I have an electric cooker and put 12 eggs in (they fit comfortably). Maybe it's the electric pressure cooker or too many eggs, but I'll probably stick to stovetop method, since I can cook more at a time that way anyway.

I followed the recipe exactly other than using 7 eggs instead of eight :). So easy to peel. Effortlessly. Eggs came out perfect. This was only my second time using my Instant Pot, and I am in love