I actually talked to a Spike rep yesterday at a 7-11 and he said when the reps are at a place where they sell Spike, they give you a Spike for everyone you buy, so I bought a couple and got 2 free.... Sweet deal! He also said that Spike is sold at some local gyms, mom and pop vitamin shops, GNC, some smoothie places, and of course 7-11. He said the Double Shot comes out in August. I looked it up and it seems to be a quick little 4 oz fix but not as potent as the 8 oz formula. I will probably stick with the 8 oz Shooter.