I use this joint frequently when making kitchen or shop drawers. I this case it is for a small box that acts as a Brita water filter container stand. Setting the bit height takes a test pass or two on a new bit. Once I have the fit I make a setup block and toss it in the drawer. My old setup block still works for another bit but, this is a new bit and is just enough different to cause a new setup to be a good idea.
Once you have your fit, it is pretty straight forward. I've just found the following method to give me reliable results. YMMV.
A one piece, tall, ZCI fence face can be quickly made and attached to your existing fence or fence face.
I use a stacked feather board and a hand screw to ride the top of the fence. This give a good amount of control while keeping your pinkies away from the bit.
I use feather boards for this cut too but couldn't get a decent pic with them in place so . . . "removed for clarity".
This gives you a nice joint that is quite strong with just glue and not too unattractive if exposed.