I I'm assuming that you are referring to buying the dip and if that is the case, it's obvious you are missing an important ingredient of that method of Bitcoin accumulation. Buying the dips does not mean sitting idly and waiting for price to drop neither does it forbid the person from apply other methods to buy Bitcoin while still setting aside some funds with which to buy should price drop below a set target.
There are many investment strategies and you can choose one strategy that works for you or combination of some strategies with different parts of your investment capital. If you don't want to have headache, you can simply use DCA, but if you afford to follow up the market and want to find better prices you can wait for dips. Time the market, find the bottom (best price) are difficult so "Buying dips" is good if you apply this strategy for one part of your investment capital. I still think your main capital part should be used with DCA strategy, not with "Buying dips" strategy.
You can buy with the DCA method with some portion of your capital and keep a small portion for buying the dips. This is what I understand as effective way of buying the dip.
I agree with your customized strategy because dips can happen or not and in a bull market, dips can occur after a long time like several months of bull run. So waiting for dips in a bull run does not always give you better entry prices.
Waiting for the dip before one can accumulate Bitcoin is a wrong strategy expecially to new Investors, applying the DCA strategy also makes you to accumulate Bitcoin even when the price is at dip because with the DCA strategy an investor can accumulate Bitcoin irrespective or regardless of the price of bitcoin.
One of the disadvantage of waiting for the dip is that it will slow down your investment process because such person won't be accumulating Bitcoin now that the price has increased, the dip should only come as an opportunity to have more bitcoin to your portfolio for you can even accumulate aggressively without overly doing it if their is back up funds to accomplish it instead of regularly waiting for bitcoin price dip to your expected price before accumulating Bitcoin.
One terrible thing about waiting for a dip before making a purchase of Bitcoin is that you may miss a whole lot of buying opportunities that may never come again, and it's even more unwise if you have less or no holdings at all, so the wise thing that should be done when accumulating Bitcoin is to just buy once your discretionary income is available, you can either use the DCA accumulating strategy or the lumps sum strategy, because both of them are very potent strategy in accumulating Bitcoin, but the key problem is waiting, no need for that, just act and buy once your discretionary income is available.
The dip is an opportunity that should only be utilized if you have the financial leverage to do so, like you have a very good reserve funds available as at then, when their is a dip, you can decide to buy aggressively just as you have rightfully said, but waiting for it is what is really not ideal in my own opinion because you will be wasting valuable time that you should have used to accumulate a very good stash of Bitcoin, we shouldn't forget that Bitcoin is still very cheap comparing to how much it might get up to in like 10 years time from now or more, so it's better to accumulate it now regardless of it present price.