The most efficient type must be VS/HS.
Vertical Hammers/Rammers are cool (my speciality. dont think this design is used a lot, excepted Rammers/Side Hammers)
(Acmme Moving Men).
HS/SnS are very efficient (SpyGuy from Inf)
Rammers/HS are decent too.
im just waiting for meganerdbomb to come along and kick things into gear.