I just do the button, I have sent emails in the past but there are so many issues that I would need a passenger just to keep notes of all the problems and I haven't noticed any fixes happen either way. If I saw any progress on my reported issues I would make more effort like maybe putting a camera in the car to record so I could go back and watch the screen and everything to send an email but I drive a lot for work, many trips in a small area and report all the intersections that have issues and nothing has been fixed with or without sending emails (I completely understand they are swamped with data and issues). I don't expect to report something and it be fixed in the next version, these are all the same issues I have reported in every version since I got beta with the other 99'ers. Just to give reference of how many trips I make, last month I had 547 drives, the month before had 642 drives and this is in a relatively small area so I experience these things over and over. Now I generally use the beta for a few days after a release, report the same issues and anything new that might of popped up then stop using it until the next release as I don't see a point in repeatedly flooding them with the same reports over and over again within the same build and I constantly have to disengage anyway.