heel-2-toe-drop measurement....

Note: I am not an expert, but I have been looking around. If I'm wrong, someone please correct me.

Unless you have some very specifically shaped calipers, I think this is fairly hard to measure once the shoe  has been put together. The drop measures the difference in the center of the heel to area under the ball of the feet. Insole, midsole, and sole all together. I don't know the shoe you're talking about, but just looking at pictures on running warehouse, I find it very hard to believe their measurements. It looks like a relatively low drop shoe and 11mm would be pretty large. 

For subjective reference: Look at the Brooks shoes, Pure Project vs "Standard". The Pure line is 4mm and the others are around 12mm. To me, this Pearl shoe 'looks' more like the pure line.

Its also hard not to trust anyone over the manufacturer on shoe measurements.

Thanks for the input, what you stated makes perfect sense.

To throw more variables into the mix... I have last years model of the Brooks Pureflow @ 4mm drop (most comfortable shoe ever). But my Pearl Izumi EM N2 feel totally differant, almost like wearing heels. Comparing apples and oranges I know but I am just looking for a solid fool proof measurement or method in finding drop.

I have to give credit to runningwarehouse for their shoefitr thingy, I have found it SPOT on everytime.

There may be a difference in how Running Warehouse measures vs. the manufacturer.  I think I remember seeing a discrepancy, not in heel to toe drop but in heel/forefoot stack heights, with the Kinvaras too. 

Anyways, here is how Running Warehouse measures: 

http://www.runningwarehouse.com/LearningCenter/footwear.html?video=FOOT01

And shoefitr isn't something Running Warehouse does, there is a company in Pittsburgh that scans the shoes.  They actually do more than just running shoes, and I'm starting to see shoefitr showing up on other sites as well.