Paywall Limit/Threshold Clarifications

Hi Gang!

Thanks in advance for your input.

I've read most (I think) of the official documentation out there in regards to Social Sharing and Free Articles within the DPS environment, but a few things are still not 100% clear to me. I'm hoping someone can clarify them for me.

• Device Viewer Paywall Threshold & Web Viewer Paywall Threshold: What is the difference between them? I understand that the former pertains to the Device Viewer while the latter pertains to the Web Viewer. I just don't understand why they are independent of each other. Is this just an added option for publishers if they so choose to meter distribution differently between both options, or am I missing something fundemental here?
• Metered Articles: They can be viewed by a reader until the Paywall Threshold is reached (whether it be the via the Device Viewer or Web Viewer). Gotcha. But is the threshold reset with each issue? Let me try and explain what I mean. Say we set a Device Viewer Paywall Threshold at 3 articles. Then we publish an issue with 2 metered articles and reader x (who does not have a subscription or other entitlement) reads both articles (2 out of the 3 maximum articles allowed before being cut-off). Next month the reader downloads the new issue, which also has 2 metered articles. Is reader x limited to just 1 more article moving forward (having used only 2 of the allowed 3 articles the previous month) or is he allowed to access both because the threshold of 3 articles as set by the publisher is on an issue-by-issue basis and "resets" each time? I'm guessing it's the latter and the purpose of the threshold number is to limit the niumber of articles shared per issue, while still giving the audience a selection to choose from. I at first thought the threshold number was a sort of lifetime number to prevent someone from getting "free" content every month in perpetuity. I await the official confirmation.

Sorry for the long post.

Cheers!