Carlos, that is a simple and easily over looked aid…..ya done good! Now this.
Being an old guy over 80yrs, my mind immediately rambled into what my back would feel like if I were cutting that much wood and stacking it (especially the bending over). So I will offer one possible help (that would work for me) but this is not a criticism at all of what you have done, just maybe an aid.
At the final cut I would have to have two smallish wagons or trailers, one on each side of the stack to catch the wood as it falls and then haul my cutoffs over to the storage place and stack them from the wagon/trailer.
Perhaps you are still strong enough that you can't see an advantage to that but for me I would favor having something like that as I am getting lazier as I grow a bit older. 'A Smile' to you and thanks for sharing with others what you have gleaned out of life without being greedy. larry