sounds good. i do reptivite every couple days and leave rep-cal without d3 in a dish. i don't bother with a second calcium with d3 since the reptivite has both in it anyway.
I have a little guy and everytime I dust his mealies he refuses to eat them then. When given undusted mealies he snaps them right up, particularly because he hasn't eaten in a day or so (since the dusting).