Even after stacking for two circles there is no guarantee that your profit will be huge because it all depends on how much that you are using to DCA and how aggressive you were during this two circles of your bitcoin accumulation and if you front load your bitcoin. I wouldn't stop at two circles but I will rather continue accumulating bitcoin until I reach my bitcoin target because that is where my focus is on. I don't use number of years to time when I will stop accumulating bitcoin but my bitcoin target because that's when I can tell if I have will move on to over accumulation phase.
I think this should be the basis at which people honestly need to work on, do not set timely basis on bitcoin for either to accumulate bitcoin or take profit from it, rather it should be base on the target, if the target is 1 bitcoin as a whole portfolio, it should be followed gradually, it can take up two cycles or more or even less depending on your income or accumulating load, if you set a time factor like 2 cycles and this target isn’t reached does this means one has to stop? I don’t think so.
For me the target should be base on the amount of bitcoin you want and not time and then you move to over accumulation period and if possible add little by little if you choose, for profit taking it is no brainer that selling all is like handing over your bitcoin again to inflationary currency and also profit should be target price and not time