Quote from ADLE:
If you can recommend any book that covers Deep-ITM covered calls, it would be great, I have no luck to find this one, people explain a lot about writing covered call slightly out of money, but not deep-itm :-(
It only makes sense to write a covered ITM call when one already owns the stock, expects it to decline to the strike, and does not want to sell the stock (perhaps because of tax considerations).
Buying a stock that one expects to decline (in your case, 25%) and writing a DITM call against it makes no sense.