I could eat like 20 of those, but thats becuase I have a high pill tolerance from when I used to be addicted to prescription meds. I'd say 3 or 4 for you should get you good.
I used to own a pH(x) double peculated. My dumb ass friend was stoned as hell on 4/20/08 and hit it against the table and broke it. I was furious. Man that bong hit amazing, i paid $420.00 for it with ash catcher and diffusers.
I lived in an apt for a year and blazed all day in there. We usually had the doors and windows shut and used our a/c. Never had a problem with the cops and smoked only the finest dro!
I went 18 years for my streak. Since then longest break I've had is 4 months, but now I just had some yesterday before I left town for school again haha.