Will the existence of supertasters skew the results? I've ordered a supertaster test chemical strip before, and found I was a supertaster, but my brother was not.

http://en.wikipedia.org/wiki/Supertaster

I find I am not tolerant of extreme flavours in either direction. Super-sweet, or super sour, bitter flavors can make me gag. I can't drink coffee or most teas. I also don't enjoy chocolate. I eat mostly 'vanilla' or bland foods, but find they taste quite good.