Not anymore, I retired yesterday!

Now I'm trying to decide if I should start searching for an M900 or 1100Evo Monster as a new project bike... or sell everything and buy a toy car. But I digress.
Anyway, yeah, if it were me I'd use a different muffler. The reasons why get into a long description involving things the OP probably doesn't care about so I'll skip it.
Another thing people are doing to quiet things down is to put a honeycomb shaped substrate thingie in the pipe(s). Those are pretty much just converters with no coating on them by the way. They do broadband attenuation and might be easier to use than a baffle you put into the muffler.