The CravenSpeed antenna works okay. I did not lose any stations but I do get a weaker signal that is evidenced by quite a bit more FM "flutter" when moving.

I've been using FTM for some time now. Product features are great. But it runs very poorly under Windows 7. I reinstalled my operating system and had to reinstall all my programs. Every program ran fine but FTM. Required much internet research to get it running. Not sure how less savvy computer user would handle this. It runs without crashing but now it frequently hangs for a couple seconds when changing views. Very very annoying.