I have used the oil method about 3 times, every time it's been awesome. I use about 6 or 7 grams of actual bud or popcorn bud, as long as it has plenty of trichs. Dry thoroughly. No need to grind it really, I just sort of crush it up with my hands. Heat in oil about 20-25 min, just under a simmer. If it gets too hot you will vaporize the thc.
Using this method and good weed, I make a 13x9 pan which can be cut into at least 24, if not 32 brownies (yes, they're small). Many people get high with just one, definitely 2 is enough for anyone. Absolutely no weed taste, just like regular brownies..delicioius. And, they work great.
Oh yeah...strain out all the weed through a metal coffee filter. May need to add back up to a tbs of oil to make 1/2 cup.