Everybody has differing levels of tolerance to marijuana, so how strong or weak your edibles are is completely up to you. Make one batch, try it, see how it affects you, adjust accordingly for your next batch. 1/4 ounce to 8 brownies sounds a little weak but I don't know the quality or rather the strength of the cannabutter you are using. Its all a little trial and error. What works for me may not be right for you. If it's pain relief you are after then strong is good.