Since we are always buying through DCA, it will be difficult to always determine our entry point. For me the holding period is the main priority in this case. It will be foolishness for me that doesn't have up to one bitcoin to compare my profitability with someone who have up to one bitcoin or more. But if someone who has up to a bitcoin sell of early and I continue holding my bitcoin for many years, there is every possibility that my profit will get to his level when he sold of or more, because we don't know the amount that bitcoin will get to in the future.
Actually an investor who is slowly coming up using DCA method to accumulate Bitcoin shouldn't compare themselves or trying to compete with those that has already started investing on Bitcoin for long because always trying to get an amount of investment other investors have could lead to aggressive investment were as you will put everything you have just to remain on the competitive trends, although there is no harm trying to accumulate as many Bitcoin as you can but trying to compete or reach out to other people amount of investment is not wise because it could lead to aggressive investment which could sometimes cause by fear of losing out, so perhaps in as much as DCA method takes a while before getting a reasonable amount of Bitcoin but is actually the best and you would be surprised with the amount of Bitcoin you will realize from ten years and above.
A good and focused bitcoin investor should not think to go into competition with anyone, because our discretionary income differs from each other, and also our responsibilities too. You might go into accumulating bitcoin competition with your friend that you guys started to invest in bitcoin at the same time, and lose focus on how to manage your cash inflow. This is because you are over aggressively buying without considering your emergency funds in a good size of up to 3 months and above.
If when you are faced with an emergency that is bigger than your emergency funds, you will end up selling part of your bitcoin, which makes the competition useless and foolish, because you fail to understand your own discretionary income and invested like you have so much. While your friend is still busy buying regularly without stopping or selling, talk more of an old time investor that bought bitcoin very cheap, and have made so much profit due to compounding effect of his bitcoin profit.