The pro has unlimited VIN's, the enthusiast is capped at 3 VIN's, not sure why there would be two enthusiast versions, perhaps one has a longer cable? The guys that run Durametric are nice and I have heard they will reset the cable for you if you hit the cap, but I wouldn't expect it. You can also do an exchange for the pro if you hit the 3 VIN cap. Give them a call before you buy one and ask if they have any refurbished cables available, you might be able to save a few bucks.
My Durametric has actually never logged a VIN, when I asked them about it they told me I must be lucky
. Their support for troubleshooting the software is really good, but they provide no information on what the data you get from the car means, and there isn't much info available online to help you decipher it. But even at $300 it's cheaper than paying a dealer to reset an airbag light.
Hope that helps!
Porscha
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