Good rain protection with little weaknesses

I use the rain cover with a Canon EOS 7D Mark II and a Canon 70-300mm L telephoto zoom. The rain cover keeps completely tight, but he seems to have been made for larger cameras with a large telephoto lens. My camera has certainly a lot of space in the rain protection.
The "sleeve" for the lens is zippered expandable though (which I do not need in my lens), however, is precisely this extension when zooming like to get in the way.
The Canon 70-300 L has the zoom ring forward and is therefore slightly more difficult to reach. On top of that I can not fully zoom back to 70mm because then the sleeve including expansion despite Velcro (similar as in the attached cover) is pushed over the lens hood and hangs in the image.
Well, the intervention left and right, and under the lens for focus and zoom. Quality makes even after repeated use in heavy rain still a very good impression. The camera remained dry. Due to the advantages and the quality I give even 4 stars. The handling is more limited, but mine is better than a flooded camera.