Driving this weekend I noticed the car shaking between roughly 70-85MPH. By the time I hit 85 it was virtually gone and by 90 it was smooth as silk.

My first step will be to get the wheel balancing checked, however it seems like the shaking would stop or significantly reduce when I let my foot off the gas and coasted. I did not need to be accelerating hard, just touching the pedal lightly would cause it to start again as well. This would make me question balancing as this should not matter of I'm on the gas or not.

I will certainly get the balance checked, but before moving on the alignment (provided the balancing doesn't fix it) I wanted to find out if anyone had thoughts on my being on/off the gas pedal might factor in.