Dave: I feel your pain! All of the HD cam companies could, but don't choose to provide the info that almost all of the car cam companies do. I have never gotten a straight answer from any of the companies that don't provide much (or any) advertised info either. We do not buy any cams from those companies, ever!
The cam "advertising wars" were heating up in the late 50s, so Ed Iskenderian (Isky Cams) came up with the .050 lift/ duration advertising figure back in the early 1960s (Yep, I'm old!) to "level the playing field", he figured that meaningful port flow was actually happening at .050" and that figure would provide more accurate duration info to the consumer. Crane Cams owner Harvey Crane, in the 70s, coined the term "intensity" to describe ramp rate differences from .050" to .200" so "joe average" could get an idea how "rampy" (therefore having more "area under the curve") a cam is in relation to another cam.
Lift and duration only are but a small bit of info you actually need to select the proper cam for your engine. Lobe separation and advance are just as important, and not usually stated, but can be easily calculated if seat timing is provided. Competition Cams is one of the few companies that publish all lobe; lift/duration/shape/characteristics in one book. Crane tried that for one year in about 2005 and then hasn't done it since.
We Cam Dr. analyze most of the cams that come through here (automotive and HD), and have for 25+ years, thats why we use the cam companies that we do and leave the junk and "companies with something to hide" to the uncaring. We also don't select cams by "how they sound in another bike." Harsh, but true. TIMINATOR