Well, from my experience(and from another level 4x archer), SPR(25):DEX(Full) works really well. I really enjoy it in comparison to my other archer build I had.

hmmm so i understand that str is more useless then dex\spr...
and i dont want to start anew archer,so i will do like that:
1(str):3\4(dex),after i do 25 spr.
and i will use axbow.
its mean i dont add anymore str untill ahigh lvl.
ok,i hope this will work good.

Well there is one way to fix all of it. But it requires you to spend some cash.

There is an item in the Cash Shop that lets you reset 10 stat points.

I did this since when I was lower I totally messsd up for my first 9 lvs. The change really is noticable, I hit 1 crit almost every 2 hits (I also got the suit that gives +5% crit)