Although I have not experienced the low speed wiggle nor the high speed instability, my F6B is easily "unnerved" when hitting bumpy stretches of highway at moderate speed. It feels jittery and seems to rattle the front end as I traverse the cracks and pits in our highway system, and it gets a little scary in corners, almost as if the front wheel is not fully in contact with the road until the pavement smooths out. Do you folks think the fork brace will help with this? My bike runs well and tracks nicely on good surfaces for the 6500 miles I have on it. Thanks.