Buying every dip between -2% to -8% is a good choice if you want to accumulate. Of course, it's still a good idea to do DCA rather than all at once - but the best option of course depends on the amount of budget you have. If you have $50 in your account and at that time the price of bitcoin falls by -7% - then don't do DCA, but buy it lump sum.
I keep regressing on what you said, of course a decline in price of - 2% to - 8% is good enough to accumulate Bitcoin. I would speak on my own understanding, it depends on the price at which the price drops, we should be able to differentiate when Bitcoin is being volatile and when experiencing a dip. So we can know when to apply our strategies, for maximum profits.
You can never invest in Bitcoin long-term DCA method with profit loss. One such strategy is investing in the DCA method that helps an investor raise money and encourage them to invest in Bitcoin. Investing in DCA method is on average how much % you will invest. Currently 41k bitcoin price if you invest 5% percent of your wealth now and invest 5% again the next day. If you invest in this way then success will surely be achieved. Never invest your entire wealth in one step, invest in different stages, then calculate the average amount of your purchased bitcoins.
There's no point buying with DCA if you have a low budget - say $50, I mean the bitcoins you get won't be significant. So consider decisions wisely and be wise in making decisions even if you are not good at analyzing.
Who on earth would want to set a budget of such a little amount, those who invest this little are those who always wait to buy the DIP but those Dcaing will need to invest large amount cause they keep buying at different prices, bit by bit base on the budget they have in mind.
Investors who invest in DCA method invest small amount of assets regularly in weekly or monthly DCA method. DCA method is definitely successful for those who invest small amount regularly if you invest properly. So no one ever keeps all their eggs in one basket, you can store bitcoins in multiple solid wallets then properly planned investments. If you want you can invest 5 to 10 dollars per week it is totally up to you.