I worked in a smartshop specialized in magic truffles. I think that fungi micro dosing is more precise just because it's more difficult to take a higher dose, than when you compare with LSD. Another important point is to keep in mind that the structure of LSD-1P is a bit inferior than the traditional composition (for micro dosing purposes).
The big thing about micro dosing is that for most people the subtle changes are too subtle. So the effects and impacts in daily life is too abstract for clear understanding. I believe that having a full dose every once in a while is more efficient than micro dosing. But I suspect this is only a matter of personal journey.