Feeder Insects

i have a male veiled chameleon,male beardie,female beardie,and they all seem real healthy and happy.ive had the for 5 or 6 months now each......i have just heard a lot of different views on how many times to dust their cricks with calcium and then the vitamins......i use jurrasavite vitamin supplement (with D3)...and then jurrasi cal calcium supplement (without D3)....i use the calcium everyday....and then the vitamin supp. once a week.......is this ok,or not enough,too much???i would like to no how much to use each supplement a week...thank you.........oh yea...i also just purchased the sandfire super foods "dragon dust" and "chameleon dust" from t-rex, which says to complete the nutritional value of feeder insects......and includes all foods,vitamins,minerals,and calcium.....so could i just use this stuff and do away with the jurassivite and jurassical???thanks again.