Your post tells me that you've never taken one of the levers apart and don't understand how it works. Ratchet teeth can be easily be machined to produce varying amounts of cable pull. FWIW, I'm the mechanical engineer and machinist who very carefully measured these pulls on my personal bikes. It's not hard to do, using a precision machinist's rule. Wrap a piece of tape around the cable, a short distance ahead of the rear cable housing stop and measure each pull several times. If you don't get very similar readings each time, then you're technique is poor. Use a rule marked with .010 inch or similar metric increments, not a fractional rule.
Here's a picture of a very early model Campy ultrashift lever that I took apart in November of 2008. The owner of this lever was a pro racer who wanted to see if I could modify the lever to produce a heavier click to each shift.
The 6th part from the left has the detents that the small spring loaded balls in the 7th part fit into. The detents can be positioned to pull any amount of cable desired. You can also convert a 10 speed ultrashift lever to 11 speed by changing out only those two parts. I did that long ago, when I had a wreck damaged 11 speed lever with the parts to swap into a 10 speed lever.
When 11 speed came out, I changed all of my bikes to 11 speed. The shifters have the same design, just with one more detent and slightly smaller cable pulls. I'm still using a bike with a Campy 10 RD, slightly modified so it shifts properly with an 11 speed shifter. Without the mod, the RD does not have enough travel. All I did was reduce the diameter of the cable clamp bolt, right where the cable rests, to effectively shorten the lever arm length and create more travel.
Here's a repeat of something I wrote up in October of 2009:
I hooked up my 2003 Record RD to the 11 speed shifters and found that it undershifts. After all 10 shifts, the upper pulley was a little more than halfway between the cogs 10 and 11, which isn't very good alignment. I made sure that the RD travel was not restricted by the low limit screw. Setting the high limit screw a little too tight helps, but not a lot. I'd plan on buying that new 11 speed RD, unless J-tek comes up with a shiftmate to cure the problem.
I just took several sets of cable pull readings and came up with a total pull of 1.03 inch or 26.2mm. That's only a little more than the 1.02 inch or 25.9mm that I measured for 10 speed, some years ago and verified again today. The cable pulls are not all the same, just as before. I got uniform pulls of 2.5mm for the first two shifts, then only 2.2mm for the next three. The old system was consistently 2.5mm for the first five shifts. Shifts 6-9 were consistent at 2.9mm and the last was larger at 3.3mm, not restricted by the limit screw. The total of all the amounts above isn't exactly 25.9mm, but the individual shifts are rounded to one decimal place, so there's a little roundoff error. The total pull was quite repeatable. In round numbers, I get an average of 2.9mm per shift for 10 speed and 2.6mm for 11 speed, but none of the shifts is really average.
Here's a link to my very old post about the Campy 10 RD mod. I posted as C-40 on Road Bike Review, for a long time - over 10,000 posts.
http://forums.roadbikereview.com/com...in-160601.html