Thanks for the link, Gustavo. I see now where I was "missing" 15-20mm's in my measurement of the front.
The question remains about setting front rebound. Which is the correct method for the initial setup....
1. hold front brake, push down thru plane of forks, release forks and observe the rebound with the front brake held? I get lots of bounce this way.
2. hold front brake, push down thru plane of forks, release forks and brake at same time and observe rebound? I get no bounce this way
3. use no brake at all and butt the front wheel up against a wall (or other solid object) for the process? I haven't tried this one yet, but I suspect it will be much like holding the brake thru the whole process.
Thanks again for the replies!