Best wood for 450-500 gr, FOC arrows?

[WhistlingBadger]

Well, here's where I pay for not keeping better records of the various arrow woods I've tried over the years; I feel like I should already know the answer to this.

I want to make some arrows for my new bow, 450-500 grain finished weight, with 150gr heads.  Spine 40-45#.  So I need shafts of that spine that will fall in the 300-350 gr range.  Of course I want something that's strong and a good value. 

I like sitka spruce, but wowee it's expensive, if you can even find it.  Douglas fir is probably my favorite shaft, but it's pretty heavy.  Is POC my best bet for hitting this weight range?

T

[Pappy]

I use a lot of POC, I like 45/50 or 50/55 , if 50/55 I just leave a little longer to reduce the spine, I shoot 160 field points and broad heads and usually they come in 500/525, little more or a little less but close to that at finished weight. 
 Pappy