Ultimately, this gets down to whether to believe the mild terrain blockage predicted for Madison. The XG-91 (or, maybe, even a stack of two of them) is your best bet for those stations. If they don't work, only one of the stations from Cedar Rapids is in the UHF band, so that is capability gone to waste. Going for the HD7698P antenna is a risk reduction. If it doesn't work for Madison, you can swing it towards Cedar Rapids and get everything but the NBC station. You can choose to add a low-VHF antenna later and combine it with the 7698 using a HLSJ combiner.
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