I would have... I didn't actually read the title of the thread before coming in here so... Make of that what you will...
Anyway, they will work about like any other antenna with their given lengths. As much as manufacturers will try and tell you otherwise, in a mobile installation an antenna's length is the end all and be all of performance. If you have a shorter antenna that outperforms a longer antenna mounted in the same space, then your longer antenna has a problem that needs to be dealt with.
The New York will be crap. Its simply not long enough to work well. If you just want to talk to someone a few car lengths away it will be fine, but if you want to do that there are cheaper antennas available... The Iowa will work better, but still not great. Its not even four feet long, and generally you will be told to use a five foot minimum antenna. Below this length performance really begins to drop off fast.
The Maryland, being near five feet long, is the shortest of their antennas I would consider, that being said, it is not a 5/8 wavelengths antenna as they claim, it is a 1/4 wavelength antenna like its shorter cousins. This is not the only company that tries to claim a 5/8 wavelength mobile antenna. I'm not sure what bs they will try and use to claim it is a 5/8 wavelength antenna, but to get the actual benefit you see in a 5/8 wavelength antenna it needs to be a physical 5/8 wavelengths long. That is a must. A wire that is 22 feet long (about 5/8 wavelengths) but coiled up into a five foot package does not a 5/8 wavelength antenna make, period, end of story.
The Texas. It will work about like a Sirio 5000, and they claim that it can handle more power. It is near the same length. When it comes to their claimed 7/8 wavelength bs, see my 5/8 rant above. Seriously though, the Sirio 5000 is a known quantity to me, this brand is not. The Sirio also costs about the same...
Two antennas of the four actually look surprisingly close to Sirio's antenna equivalent designs. I wonder if that is just a coincidence... Wait, I don't believe in coincidences...
The DB