Minor update here. Finally got the "quieter" baffles from Delkevic and was in town long enough to install them. They "fit" at an angle and could have been designed better. But...they're in. The bike is a bit quieter and more liveable, but still loud. Kinda wish I'd tried the SS90's instead, as they're capped and another inch (thinking every bit counts). Contemplating getting a couple 13" Delkevics of similar design since they will fit the collector and modding them into 10" sets.
Very happy with how the engine is running, just a lot louder than I am used to!