i guess they are so close together that you probably won’t notice any difference one way or another. i just like to add my flavor additions at15 and aroma at flameout. K.I.S.S.
Looks pretty good. Keep your crystal at 1/2 lb, and lower your sugar to .75 or 1 lb. You don’t want a thin beer. I don’t know much about Zythos, but maybe skip the 25 minute addition.