Questions With Rotational Servo Speed On Adventure Bot

When I load the example project, I get an Auto Position Control that includes directional arrows. However, when I press Forward or Reverse, only one servo moves. If I press Right or Left, both servos move as expected in opposite directions After reading the "Calibrate Continuous Rotation servo Adjust Speed" tutorial and watching the video, I added the "Continuous servo Movement" Control which required the removal of the Auto Position Control. Per the video, I changed my stop values from the default 108 to 90 and clicked Test on both Stops, with the "Use" checked. I was able to stop the movement as shown in the video The next step adjusting speed, with the "Use" unchecked. Unlike the video, I was only able to slow the speed a very small amount. My servos would only move at 95 or greater or 82 or less not the closer numbers shown in the video.

My questions are:

1. Why can’t I set the slow speed?
2. Why was the Auto Position control in the example?
3. Am I now supposed to remove the control I added and put back in the Auto Position control I read many other posts on issues with rotational servo speed issues, but didn’t find a solution

Thanks, Frank

Calibrate Continuous Rotation servo Adjust Speed