Can you post a link to a tvfool report of your exact location? It would help us understand what you're up against, signal-wise. If you need any help, here's a good starting point:
http://forum.tvfool.com/showthread.php?t=3
BTW, when it comes to antenna sensitivity, size does matter. I suspect that Tigerbangs recommended those specific antennas based on the signal strength of your local stations. If you try to go with a smaller antenna, you might not have enough sensitivity to give you reliable reception on the channels you want. Unfortunately, the laws of physics cannot be changed.
Is your concern about aesthetics? cost? where to install it?