Both cock and pussy licking is more hardcore than "normal" sex in my opinion
If you are talking 'bout spirit I think uniform will fit your sponsor's office site better than hardcore, what may couse better ratios
Also I gess it's easier to get listed at uniform category than hardcore - second one is filled up and fetishes like uniforms always will be judged more indulgently
ps. sorry for my english - I had to check my dictionary so there is possibility those words can't be translated that way in english