Here we go again. Tim, the number of DX stations you can hear or work means absolutely nothing! Not efficiency, not how good your installation is (or isn't), nada! Using the metaphor identifies you in a plane you probably don't want to be in.
Ground, ground, ground is another. Unless the grounds are long enough to be radials, they do nothing. True, you do need a return for the coax, but that's all. If you mount the antenna like you should, you wouldn't need, grounds ad nauseam.
The other metaphor you hear all too often is, I can work every station I hear. If you think about that for a moment, you'd understand why it too is an oxymoronic statement.
While it may sound harsh to be criticized for your choice of antennas, you're not alone. In fact, it is the second biggest seller, with High Sierra the top dog. It also happens to be the most resold (used) mobile antenna as well.
As I said before, the one thing it is best known for, if whetting appetites. Let's hope that is exactly what it does for you.