That is the way i do it as well. My Output 1 to monitors left and right, dry signal to output 2 which feeds my powered cab , but same result as you, and it seems fine
i know you can get more complex chain ( have a reverb in left and delay in right, etc ) but I haven’t done that.
My set up , I always have three speakers connected, regardless of W/DW , just sounds full and my center happens to be a firehawk 1500 ( thru the back with no effects ) and just changing the one output to branch off directly from the cab turns the middle signal dry , while the other monitors left and right on output one, has all the time based effects. So in my book, that is W/D/W .. But i am no expert, this seems to work and make sense though.
I have seen some with Sends and returns, but i dont need to get that complex. I think there are W/D/W Presets on AxChange ?