So after learning about some of the quirks of the Habsburg line infantry, I wanted to try and cook up some build ideas.
I always have some casual prince electors build, but mostly went with Hanover for the drummer.
But now I think given that Germany also have access to the INF 17 Line Infantry shipment, combined with prince electors going habsburg, you effectively get guard upgrades for the prince electors units immediately and can start massing guard level muskets pretty fast
Contrast with say going blood brothers, this is a more focused version and probably have better timing potential