It may seem like a waste at first, because you are using a lot of weed up front. But if you really think about it, smoking weed is really the waste. With smoking you are losing half the THC in second hand smoke and resin deposits. That sounds like serious a waste to me. When you injest it you are putting the full amount of THC into your bloodstream and wasting nothing. It may take a while to feel the effects, but it will hit you like a ton of bricks.