splitting doses isnt microdosing its splitting doses . thats a pharmacokinetics play, and is different.
micro would be running aggregate subclinical doses ie <2mg/week total.
low dose reta works like weaker more tolerable tirz with a different glp/gip balance and also as the gip agonist in reta has a 9x difference in binding affinity vs tirz or something like that too.
while the third agonist is there, it doesnt really kick hard until around 4mg a week. in my case thats when i started testing positive ketones in urine by lab sample, while doing monthly labs. in my case that was around 4 or 5 months in and probably around -30-35 lbs, when i moved to 4mg. reta at 4mg+ seems to put me in ketosis while being able to eat carbs, which is like super weird.
so this actualy gives two distinct strategies to run reta , for slightly different results. and can be tailored to the rest of the stack/lifestyle. IE this may want to run different for fat people losing weight vs BB's.