A few weeks ago I tried that combination, I went to a hardcore party, and about 22.00 I took 2 kryptonite capsules. that was cool, and about 00.15 I took one Ephedra Supercap and three hours later another ephedra supercap. And I just had a great party, with a lot of energie, but the ephedra takes the feeling of kryptonite away.
I think it's worth to try!