There is a thread like this still. If you hover over the Pokemon reborn tab at the top, one of the drop-down options is a development blog.
This will give the detailed percentages.
The only reason I've had to use common candies is because of training new members though exp share, and my main team goes above the limit, or the same problem happened when I EV trained my team before the Titania gym battle. Don't really see how this mechanic is a problem.
I know that you find Munchlax headbutting a tree in Byxbysion Wasteland, but could I get a screenshot of the actual tree you use?
Also does it depend on a certain day or type of weather to catch it?
I've been doing this for a while now and still haven't found a single Munchlax.
I know that when you collect an egg and soft reset before you hatch it you can't change the pokemon, but if you soft reset before you collect the egg, can you then soft reset to get it shiny?