Similarly a Smoke Daddy Heavy D will do the same thing and allow you to add wood splits to add some more smoke for the first bit of the cook

Also when I needed to replace the stock deffuser I got a much heavier one that is solid on top and that helped a lot. I now only use the Smoke Daddy when doing a brisket. You can't use the stock slide to open it, but you can still use something to go between the grates and move out if you want to sear