Robert, thanks for your response. I understand the issues with Canada, and hope they can be resolved.
For me, there are a number of active near-by 4G sites in southern Oakland County (2 miles northwest of me, 1.2 miles southwest, 2 miles southeast, 2 miles ENE), but nothing to the North for over seven miles. The big dead zone in south Oakland county looks to cover about 30 square miles, from West Bloomfield to Troy, without a 4G tower or site. Hopefully more sites pop up soon. Once in a while, early in the morning, I get a 4G signal at home, but that disappears really quick, and the 3G service here is not great either.
I'll keep following the progress here on S4GRU. Thanks again for the information. Hopefully in four or five months Sprint will make more progress, and I'll re-up with them. I have been a customer for about six years, and their past performance in living up to expectations has not been good.