Wow! and I though I was a doof! I basicaly breezed thru the Texas Irrigation Exam with a 82 80 80 and 89 but, this T D A stuff if kicking my tail. Scale, aphids, brod leaf weeds etc......man. I guess I could just study over the pre-test but, would I absorb any material? I don't want to study just to pass a test I want and neeed to know the material. Not to be the biggest.......Persueing to be the best!