From my understanding, an investor faith in Bitcoin can determine buying Bitcoin agressively or rather with a little amount. From the illustration above, we have two set of investors, investor A and B whereby both investor choose to invest separately despite their financial status being equal. Personally, when it comes to investment choice one ought to think careful and their allocation monthly or weekly should be in position, for example I don't expect anyone to buy Bitcoin using 100% monthly or weekly all in the name of being aggressive besides from my study people who invest like this end up selling before reaching their target. Note, my approach towards Bitcoin investment will determine my believe and at the same time investor still have responsibilities, needs to settle, holding an emergency fund etc so by the time an investor will consider all this factor monthly or weekly will definitely determine their accumulation approach.
Surely if someone is investing 100% of his discretionary income into bitcoin that might be on the border of too aggressive because he might not be adequately accounting either his income or expenses, so there would be no room for mistakes, unless, he were to invest that amount at the end of the pay period rather than at the beginning, meaning that if he were to only make his investment of all his extra money right before his next check had arrived, so then he would be at least eliminating the possibility for mistakes, so then his next period starts again after his check for the next pay period arrived.There could be some folks who say that they are doing 100% but they really are not because they are keeping various kinds of cash cushions, but then they could still be accurate in claiming that once they calculate their various kinds of cash cushions are in place, then they will invest 100% of their remaining cash into bitcoin, whether that is weekly or some other period of time of spreading out the buys.
In as much as investing 100% could be risk or over investing but with this method you have explained I think it will be very difficult to get into trouble during the accumulation process because you have already eliminated any possible risk that could arise along the line, actually this method has been very helpful for so many investors today and funny enough I have make use of this method sometimes, especially when I'm very close to receiving my monthly salary and by then I have cleared all possible needs that would arise so I will then putting 100% percent of my available funds at that moment while waiting for the salary to come so that I could balance the equation and from their continues my DCA.
Actually I only use that method whenever I feel I'm free from any needs and my monthly salary is very close, however it takes a proper understanding for an investor not to make a mistake on this method because like you have explained that investing 100% is only good before the pay period so that they will not ran into trouble but funny enough most investors will still be aggressive trying to be greedy.
It's a very big risk you are taking there by investing your 100% of your income. Even if your salary date is very close I still encourage you to go all 100% in with your income. What if something happens along the line and your salary is a bit delayed from the usual schedule. You know whatever that involves human can experience some setback at one point or the other. But to be on the safer side, you can go in with at least 70% of it and hold on to the remaining 30%, if the salary comes as you were expecting then you with the 30% you set aside. This is done as a precaution should in case there is a little delay of your salary payment for let's say few days or a week. If the salary didn't come immediately as expected, you will still have your 30% to cover your expenses. This way your daily life won't be affected.