I would go for the higher grade utility spring snap. These caps are a bit thin and the cap-stems/male-post split into three and curl over. They hold well but are not visually appealing. I am assuming that the higher grade snaps will roll the stem/post over without splitting them.
The service was good and it took 13 days from lodging an order to delivery in Western Australia (OZ).
I am pleased to have found the Snaps Tools website as they have snaps that are not available in OZ.
So, pay the extra and get the recommended higher grade snap.