Dont spend your initial 15 SP until you train Speed to ~30 Then take Speed to atleast 68 while training Agility/Vision Once you're done with Speed put points into Agility to atleast 68 while training Vision/Catching Once you're done with Agility put points into Catching to atleast 60 while training Jumping/Vision etc.
This is just stuff I've read from other people giving advice so it varies a little bit but that's the general Idea for building a WR.
If you don't boost like myself then you'll have to make some adjustments later on with when you start putting Points into SA's. The General Rule is DONT put SP into SAs until you Attributes are at appropriate levels as explained above. That is usually level 35 ~ 40.