I swapped out my hard top for my soft top. I realized this would be a good opportunity to do some sound level comparisons between the two tops. I found that the difference between the two tops is most noticeable on the highway and there isn't a big difference at lower speeds. On a recent road trip, I put on the hard top for the added efficiency but I also like the hard top from a sound perspective when driving on the highway. This test sort of proves my theory that the sound levels are way better on the highway with the hard top.