Sakura D4: First day on track

Our local track was open yesterday and I was able to get the D4 out for it's first test.  Things did not go very smoothly at first, as I was fighting a car that seemed erratic and did not handle well.  Several changes made it better, but far from good.  Then, a breakthrough... the gyro started freaking out and the steering servo started moving on it's own.  The Yeah Racing gyro apparently was not working; possibly from the beginning.  I had a spare MST gyro in my box and switched over to that.  Suddenly the car was transformed.  It was pretty balanced and hooked up, only requiring a few more changes for good results.  I will be doing a few more tweaks to get it dialed all the way in, and plan on publishing my setup info in the blog soon.  But I left yesterday feeling pretty good with the progress.  This is a solid chassis out of the box.

Here is some video with the progress of yesterday's tuning: