If you have $5k to $10k, you could invest parts of it lump sum right away, yet even the parts that you would defer by DCA or by buying dips, you would set up the parameters, the amounts and the time, so the DCA could be over 5-6 weeks or it could be over 5-6 months or some other timeline, and if the BTC price generally trends down during the period of your DCA you are better off for deferring yet if the BTC price generally trends up during your period of DCAing you would have had been better off to buy right away with that portion. You cannot really know price direction with certainty, even though you could have some hunches that might end up being or not being correct
Yes you are correct. If a person has a large amount of money eg $5k to $10k then one should lump sum some.of it while leave some To DCA so that DCA smoothens the volatility out for the lump summed amount. But if a person has less lets say $1k then he should Just stick to DCA and Invest little by little because that amount isnt much to lump sum. Anf if you lump sum it then theres a high chance a person not lose but lessen his profit amount percentage. So if you have large amount of money some should be lump summed while other DCAed and if you have a small sum then you should focus more on DCA. But there should be a fund set aside so you can still Lump sum if there is a deep retrace.
What you refer to as large amount of money could be another person's DCA weekly or monthly allocation. So referring to $5k as large amount of money is somewhat misleading. What matters is understanding your goal and moving after it at your own level. There are low income Earners who DCA weekly or monthly with amount not more than $20 while there are still elite investors who DCA weekly or monthly with over $1k. Both low income Earners and elite investors have same responsibility, buying continuously to hold and chasing their accumulation target. This is why you have to analyse your income and allocate what you can be able to hold to bitcoin investment. If you measure your speed with someone else's speed, you may loose all your bitcoin stash. Aggressive buys is good when you have additional discretionary income during dips instead of going beyond your capacity during dips.
It is very important to avoid noise from outside and focus on your DCA approach. This will give you the soft play through which you can be able to HODL for a very long time. Going for dips when you are not financially ready for aggressive buys just because it's dip is a bad decision which can cause a harm to your portfolio.