Hi Dick,
Some comments, hopefully constructive. This is based on what I find works for me in terms of editing but also in terms of what I want to watch.
Footage is good in terms of the content. A nice looking trail (that I haven’t been to and makes me want to ride it), maybe the resolution could be better. Does the camera have HD capability?
I’m not a fan of the camera perched on the top of the helmet position. I feel it leaves the viewer being disconnected from the rider. One of the cameras is facing slightly too far down too so it feels like the viewer is trying to look up at the top of the picture to see more of the rider in front.
Chest mount is better or perhaps side of the helmet. It just brings the viewer closer to the rider and trail.
Nothing wrong with the editing. There’s no need for fancy scene changes etc. Keep it simple which is what you have done. MSWMM is perfect for most of the editing you will need to do.
In these days of short attention spans then the length of the video is quite long as evidenced by the fact you need two tunes. It depends what you are trying to do though, make a record of the full descent for your own purposes or make a video that others will want to watch. if it’s the latter then consider some ruthless editing. As they say in the movie world the more you cut the better it is.
And finally, I really prefer videos where you can hear the sound of the bike/trail. Not sure if you have muted the sound or it’s just drowned by the music but for me, ~I would prefer to hear both the music and the clacking of the bike, splashing of the puddles etc. etc.
As above, hopefully constructive and keep it up. The more videos you edit the more fun it is and the better you become.