Well, at least this should be fairly easy for some people to test on their own. If you have access to a velodrome, or a nice loop with little wind...I can't see how difficult it would be to verify the 15 watt claim. I mean...we're not trying to validate a 2-3 watt difference like you would get from latex tubes...we're talking about 15 watts or 70 seconds per 40k. If some people come back with results in the 5-10 watt range that would still at least be a validation that it's worth doing. It's not fully necessary to replicate 15 watt improvements for this whole "is shaving worth it" argument to be settled.

Now on the other hand...if random people go out and test this on their own...and constantly report little to no difference in their results...then either they REALLY suck at testing protocols...or we might be back to square one.

ETA: I suppose you could make the testing process really easy. Instead of shaving your legs between runs (wind, air pressure, etc may change), just quickly slip on a calf sleeve or something that covers the hair. I know it may differ from how skin reacts...but most testing I've seen shows that skin isn't as aero as fabric anyway. Got to admit though...it would be pretty funny to see a triathlete sitting on the side of the road with his bike right next to him while shaving his legs...LOL.