http://www.smogon.com/forums/showthread.php?t=25175
The damage formula has just a few questions remaining, so if you could test these, this would be a great help!
To test these, you will need to likely do several hits. Just post who you are attacking with, your attacking stat, who you are attacking, and the defending stat. Wild Pokemon obviously won't work because you don't know their IVs.
Which comes first: my own Pure Power / Huge Power or my ally's Flower Gift?
Your Attack stat prior to applying these boosts must be odd for the test to be conclusive. Report as many hits as possible. You will have to be in 2v2 and use an attacker with Huge Power or Pure Power, and have its ally be a Flower Gift Pokemon under Sunny Day. The larger the damage you can do (in terms of HP, % won't help), the better. Attacking a Blissey of known Def and HP would be ideal because of this.
What is the order of Me First vs. Tinted Lens? We know they are back to back, but it is currently uncertain which comes first.
For testing this, calculate the damage up to Mod2. The number before that in the damage formula has to be odd, or the test will be inconclusive. Report as many hits as possible. Skill Swapping Tinted Lens onto Lucario would probably be easiest. The larger the damage you can do (in terms of HP, % won't help), the better. Obviously, the Pokemon has to resist the attack you are using (for instance, using Waterfall on Azumarill).
What is the order of DeepSeaScale vs. the Sandstorm Rock bonus?
For testing this, the Defense must be odd before applying modifiers, or the test will be inconclusive. Report as many hits as possible. Give Clamperl a DeapSeaScale, and turn it into the Rock type (for instance, Skill Swap Color Change and hit it with a Rock move, then Skill Swap Color Change away so it stays that type, or nail it with only special Rock moves). This is probably the most obscure test remaining for the damage formula.
If two Pokemon activate Quick Claw while Trick Room is in play, which Pokemon goes first?