Jeremiah

Is there any reason not to use the stronger padding and then fall back to the weaker padding if the build version is lower? I noticed in the [RealWhorlwind.java](https://github.com/square/whorlwind/blob/e44660443e4c4b20757aa5017551a580313a9b86/whorlwind/src/main/java/com/squareup/whorlwind/RealWhorlwind.java) file...