i tried the spiropent the first time i had ever used clen, lemme tell you that was some kick ass clen.. if i remember right, it has a design on one side that looks something like a little house with a roof,,, hahah or atleast thats what i got out of it.. (i just felt like i was at the psychiatrist and they were asking me what i saw on the picture..lol)
i have also used the .4mcg hangurashi, or something like that.. and it is also really good..
i believe the oxyflux is mex right? if its what i remember i havent heard a whole lot of good things about it, but hey thats just what I heard. but it would really make me wonder why the spiros arent up to par, even compared to the oxy's..
Take care,
GJ