Strikers SA, has to be one on one as any striker scores penalties so penatly kick specialist is a waiste, even free kick special ability is, I have a very good striker with and set to take freekicks and he constantly misses!!!. as allocating skill points you should build up attack and physical only as a striker is no good in defence anyway, Dont bother training a special ability unless you are going to throw alot of money into power training as it takes to long and by the time you have got him it you have moved up a level and he has dropped a star!.
To get a super striker then buy a scout or buy a young hot prospect that will train quickly an improve fast, it is a bonus if you find a two footed player but not essential, just try to get a left footed striker and a right footed striker when plaing two upfront and play them in there respected footed positions.
My prefered SA to positions are as follows
ST=One on one
ML= Dribble or cornerkicks
MC=Playmaker or freekick specialist
MR=Dribble or cornerkicks
DMC= Playmaker
DL=Defecive wall or Aireal (which im using)
DC=Defencive wall for blocking freekicks
DR= Defecive wall or Aireal
GK= One on one stopper prefeed as most penaties get scored.