right so i have read a bunch of stuff on retiring and the options you have when you retire your king but since i've never actually done it myself before i just want to make sure i'm correct.

say i have two male heirs that i want to "combine" almost -- one is not mutated, has low stats, but i really love the design. the other is a mutation i want, has really good stats, but i don't like the appearance.
if i did this:

retire current king --> king low stat pretty heir --> train mutated heir while the pretty heir is king --> retire low stat heir + replace with mutated heir --> choose to keep the pretty heir's appearance

would i end up with a high stat mutated king like the second heir but with the appearance of the first heir? mostly i wanna make sure that it wouldn't wipe the heir's mutation lol

idk if i explained this well, so if you're confused just ask lmao