I guess you could argue it, but I still wouldn't buy it. After messing around a lot and seeing slow motion video of arrows being released I don't think it would make a big difference. It would be better to fix the original problem rather than rely on a milisecond of arrow travel to help reduce the effects. And the two things you mentioned would be consistent anyway, so even though they may effect flight they would effect flight to the same degree every time. So the could be tuned out and compensated for. As long as you had consistent form time on the string wouldn't matter. Where less time on the string would help with things that varied from shot to shot, like if the bow were in motion before you released the arrow.

In my opinion once a bow is properly tuned and set up the arrow is going in the direction it was pointed when released. Any differences are either going to be from form, aim or arrow inconsistancies. After seeing slow motion video of arrows be released and playing around with different things myself I just can't beleive the short amount of time the arrow remains on the string is really going to effect anything. I have played with a bow changing the ATA, brace height, timing and other variables and it always shot exactly the same once it was tuned for those specs.

If power stroke mattered women, kids and other short draw archers would dominate the field, where longer draw archers would have trouble competing.

Like I said, technically yes it could make a difference, but I highly doubt anyone would notice it or be able to use it to their advantage. There are way more things to worry about than one inch of brace height in my opinion. One being rest postition, I think a rest in the proper position right over your grip is more forgiving than one that sits behind the shelf giving you a slight overdraw.

Again, these are only my opinions. However until someone can actually prove me wrong with some sort of test I am going to hold to them.

I can't really comment on draw force curves, I've never really messed with or concerned myself with them. Either a bow feels good to me or it doesn't. I have a short draw by the way, 26 inches.

Paul