Do yourself a favor and download the free Speedtest.net app and do a few trials...grip of death, fingers on but not bridging, and bumper on. When I'm at work and I hold the phone death grip style (no bumper on) I don't drop bars, but when I do the Speedtest.net tests the results are quite surprising. Here's what I'm experiencing (speeds in Mbps)... Down Up Usage 4.48 1.60 Bumper on 0.46 0.01 Bumper off, grip of death 2.89 1.44 Bumper off, fingers on rim but not the death spot 3.01 1.57 Bumper off, fingers on glass only 4.08 1.60 Bumper on I'd bet you'll see similar results. This phone absolutely needs a bumper or case for best results. I can't see how Apple's "fix" is going to fix this issue.