For 365/365XL owners who are interested, Sig now has striker units for sale through Sig store that are of the most recent design.
With the release of the XL they changed the striker tip to be angled and also of course the shorter spring to reduce coiling. Unfortunately they also changed the design of the striker channel sleeve which makes it considerably more difficult to remove than the original.
This new design can be purchased through the store. I’ve seen other retailers offering this unit but cannot verify if it is the most recent design. For those concerned with primer drag or worry their early production striker isn’t up to snuff, this is an inexpensive upgrade. While I feel the primer drag issue is a non-issue, I do feel better about the durability of the current design.