what is the difference between 5+2 and 5+1..classical haluk rule..(allahýn eyyamcýsý)

let's see,
bjk:shorunmu,munch,karhan,khletsov,nouma,amokachi
gs:capone,hagi,marcio,popescu,taffarel,jardel
fb:revivo,andersson,mosheou,rapajic,lazetic,moldovan(or the other crotian player,i dont know his name)
i think it's a silly rule..