I disagree with you that reserve funds shouldn't be used to buy bitcoin during the dip because that is one of the major purpose of building a reserve funds so that you can be flexible in your bitcoin investment and buy bitcoin at the dip whenever it comes to increase your bitcoin portfolio faster provided that your regular weekly accumulation is ongoing. It's not a crime or bad to use your back up funds for the right purpose just like you shouldn't use your emergency funds for anything only when there's a real life emergency.

The reason of building a reserve funds is for you to prepare yourself for any possible dip in order for you to take advantage of it. Secondly, you can also use your reserve funds first to take care of any real emergency that pop up before diving into your emergency funds. It's when your reserve funds cannot tackle the problem that you start using from your emergency funds.

Reserve funds is can also be used for going to an expensive restaurant for dinner and maybe, the repair of your car when it breaks down without any preparation for it.