Haven't made up any cedars myself; I've been using Doug Fir mostly and working on a set of Sitka Spruce. I need the lightest fir I can get to keep my total weight down to around 480-490 grains (no cap dip, tung oil sealer-lighter than poly-, and 125 grain points, 28.5" BOP, 50-55 pound spine. Surewood, Braveheart, or Wilderness Custom Arrows. I really like the fir, and quality has been excellent.
Trying spruce now, got my weight down to around 450 grains.(to get my weight down to 10 gap from around 11). Haven't shot them much yet, they fly real nice and flat, not sure how they'll hold up to stumping compared to fir.
If I could shoot fir at my desired weight, I would. I prefer the straighter grain, they look a lot nicer after staining than spruce, and I'm thinking they're also a little tougher.