The Quabaug heel rubber on my F/Rs is 11mm thick – 12.7mm would be 1/2", so it's very close to half an inch. The heels measure 45mm in total, from the bottom of the sole to the top of the midsole. In my boots, they may appear a bit flatter because the boots themselves are pretty huge at a size 12.5. On the other hand, the sharper heel slant and the sleeker overall shape of the Packers will make the heels look more pronunced. But then, that's what they are supposed to look like i guess. I like the look of your Packer heels.