At any rate: several people more expert than myself have talked about this over the last week, and if you still think the focus on forcing the majority to talk is a good idea, I recommend looking at what they have to say.
First, Greg Koger had a very interesting post pointing out that whether a Merkley-style reform would work depends a lot on how exactly the rules are changed. It's not enough to simply call for talking filibusters; if it's to "work" in the sense of making the minority really have to pay a high price for filibustering, then the rules have to be tinkered with to actually make that happen. Sarah Binder followed with an item which emphasized the uncertainty of reform; about this point, however, she said "I generally share Greg’s degree of skepticism about the potential effectiveness of the talking filibuster reform." See too Steven Smith's comment to Sarah's post, in which he makes the key point:
The majority, of course, generally does not want talking filibusters. As the minority knows, the majority usually wants to get to other pressing business. Negotiating around the filibustered bill would still be common.That's really what it all comes down to, and why Smith concludes that it's "quite uncertain" whether these reforms would "reduce filibustering."
Now, I don't want to simply argue from authority, but for those outside the field: these are perhaps the three top scholars of Congressional floor procedures in general and the filibuster in particular.
They aren't saying, by the way that the rules cannot be drafted to make talking filibusters required in a way that attrition is the likely result. Nor am I! What they are saying is that it would take a very carefully refined set of rules.
In other words: it's not hard at all to draft rules under which filibusters could be beaten by setting up a physical challenge which the minority could only meet for some very limited set of time. It's also not hard to draft rules under which talking filibusters would be required, but could be sustained indefinitely -- indeed, that's basically the current case, except that "required" live filibusters under such rules will rapidly give way to negotiated silent filibusters because it's the best alternative for the majority. But what's the point? No one cares, or should care, about talking per se; what everyone should care about is the balance of influence in the Senate. So forget about the talking part of it, and get on with real reform.
For even more, see another comment to that Sarah Binder post from Richard Arenberg; a good post by Dylan Matthews from last week; and a general post about reform from Matt Glassman.