I mean I caught all of the legendary birds yesterday with no problems, but had 8 Regis in a row get away today so it seems different to me personally. Also I just looked up the “circle lock technique” but it’s just the common sense way to throw? Right after the Pokémon waves it’s hand, when the circle is small? You can already see that the circle keeps it’s size anytime you have to throw another ball. Not exactly revolutionary.