Working on adjust the ANR volume this weekend. As far as gear volume levels...In my opinion it's better to have too much rather than not enough. Too much icing on the cake, just scoop it off. Not enough icing on the cake, too bad, Timmy ate it all.
If the ground interaction audio is too much for your audio system I recommend adjusting the "Environmental" slider for the best experience. This slider is also good for anyone who chooses to use XPrealistic and the audio it presents for gear and airframe wind sounds! Hope this helps!