Rode my bike to work tonight, since the rain stopped today. The sound is not an issue for me, but I can see a possibility of hearing a drone with a taller shield. I still have my stock shield.
It might be simpler for you to just pull the baffles; it's only 1 screw per baffle. Make sure your pipes are cold. They don't come out easily if they are hot or warm. I labeled mine so they will go back where they came from if I choose to put them back in, even though they are all the same.
By the way, the speedo healer does its job well! Yeeehaw to that!!