yet you also have extra BTC that you can treat as surplus and to be able to sell small amounts of the extra BTC and never really use up the extra BTC.
It is a good idea that after using a long time to invest in bitcoin, one can still have extra bitcoin that is not part of his investment portfolio, which he can withdraw little once in a while because of the excess profit that has been generated from his extra bitcoin. I like this concept because it makes you still keep intact you bitcoin portfolio since you are not withdrawing from it, and I have never thought of such idea. I am still in my accumulation stage, and maybe in future I will give it a try.
If you are getting to a point that you have accumulated quite a bit of BTC and you are thinking about how to draw income off of your bitcoin, then you could put it to practice, and even use a relatively low withdrawal rate if you are still in the process of trying to allow your BTC to continue to appreciate in value.., and so it could be a mistake to start to use it too soon, but also it could be a mistake to have a lot of BTC but also have no plan regarding how to start to withdraw them on a regular basis that is comfortable and likely to be sustainable if you try to stay within the parameter of the guidelines of the tool.
You are right, it is good to put everything into consideration, when you are investing and when you have reached the point at which you have reached your bitcoin goal, and how you will go about your withdrawal so that you don't make a mistake to over withdraw from it, so that it does not affect your bitcoin holding from good profit. Some investors can even make mistakes of selling all their bitcoin or withdrawing higher percentage from their bitcoin portfolio that might not be wise, because it can prevent them from the compounding value for the rest of their lives. It is nice that you stated this @JJG, because I might fall into the trap of over withdrawing from my bitcoin portfolio in future when I have reached my bitcoin target, which might make me regret, after such action in the latter.
but it is far better also to make use of the various stages of Bitcoin market volatility to make more gains within a short period and if you are an expert in the chat readings and market speculations, you stand a good chance to make more profits using DCA model than just holding for the long term.
You don't need to be an expert in chart reading and market speculation before you can make profit, all you need is to discipline yourself so that you will be persistent and consistent with your regular weekly or monthly DCA, and if there is room to invest aggressively, you can DCA aggressively, as long as you don't overdo it. You will definitely make profit over time, because with DCA you can buy regularly irrespective of the price of bitcoin at that moment.
I just want to add to what you rightly said, you really don't need to know technical analysis for you to be successful in investing into Bitcoin through the DCA method, because if as an investor that have so much faith in Bitcoin and is aware of the potential of Bitcoin long term then you will have only one duty, which is to just hold, the only thing I see as a problem if not addressed is having a source of income or an emergency fund so as you wouldn't be looking at your holdings when any financial problems arise.
Moreover if you pay close attention to the historical figure of Bitcoin and how it has aged like a fine wine 🍷 you will definitely be confident that in the nearest future, the price of Bitcoin can get even better than this due to it limited supply.