Well buying at the dip and also investing in the DCA strategy accordingly can be combined but it kind of essential to understand the importance of each approach
If you buy the dip, you're already considered investing. So, whether you DCA or simply buy the dip, there is not a lot of difference and even can be said of the same thing.
I usually use to say investor should consider their financial capabilities situation and risk management plus tolerance and market experience when choosing an strategy accordingly well combined the two it allows the investor to take advantage of the market opportunities while maintaining an consistency investments in schedule.
I agree with this.
An investor should assess their financial capability before investing. Because I have seen investors blame the others for telling that it's the best to buy the dip and then they bought.
But when the market didn't went accordingly, they're looking for that fault to others and not for themselves. If you buy, do it according to your will and not because it is said by someone.