Not sure what makes Getz barrels want to shoot less powder. Does anyone know what twist he used in the .36's? Mine is 48", same as the .32 I had and the .40.
If you use patches that are too thin, then very light powder charges will shoot best for you. If you use tight loads, you will shoot more accurately, and will find you also
need to use more powder- for shooting past 25 yards, that is, if you want to get the best accuracy from the gun. If mediocre accuracy is good enough for your purpose,
then by all means shoot light loads & save on powder.