You are describing front wheel wobble. There are many threads on front wheel wobble that might help you. The anti dive test is easy. Either it works, or it locks up and makes the front end hard as a rock.
1. Do not remove your hands. If you think you have a problem, jack up the front and see if you have for/aft movement of the forks. If so, then the bearings may need torqued.
2. Lock the front brake, then "bounce" the front end as hard as you can. If the ADV is working, it should lock up during the 2nd or 3rd bounce.