Grupe has looked great, but the main thing that worries me is that he wasn't that great in college. I don't know if he's made some adjustments to his kicking style, but it is hard to change that muscle memory.
College kicking is a lot more difficult than NFL kicking. Different and more harsher hash marks, and a lot less competent snap, hold, and blocking operation.
A lot of NFL kickers had substandard college stats.
These numbers are from several years ago, so it has a lot of old names, but it’ll help give you an idea.