Hamilton made it clear in Federalist 85 that Congress must call a Convention when 2/3rds of the states apply.
"By the fifth article of the plan, the Congres will be obliged "on the application of the legislatures of two thirds of the States [which at present amount to nine], to call a convention for proposing amendments, which shall be valid, to all intents and purposes, as part of the Constitution, when ratified by the legislatures of three fourths of the States, or by conventions in three fourths thereof." The words of this article are peremptory. The Congress "shall call a convention." Nothing in this particular is left to the discretion of that body. And of consequence, all the declamation about the disinclination to a change vanishes in air". - Alexander Hamilton Federalist 85
Nothing is perfect. What we do know and can take to the bank is that the "National Legislature" to use George Mason's term, is going to do nothing to change its present trajectory. They will not do anything to curtail the leviathan federal government that is for all intents and purposes, out of control. It is out of control due to decades of perversion of the Rule of Law (Constitution). The 2nd mode of Article V grants the states the vehicle to end run Washington and "reset" the language or clarify the language of areas that are most abused, i.e. the Commerce clause and the General Welfare clause etc... The founders made this very clear, they told us, it's right there in Madison's notes of the Federal Convention of 1787. June 11 and Sep 15 of 1787 in particular, carry the events that surround the adoption of the 2nd mode of Article V. George Mason specifically advocated for this end run when he said "no amendments of the proper kind would ever be obtained by the people, if the Government should become oppressive".
At the end of the day so to speak, you can disagree with the COS strategy and those of us that are advocating for this... good people can disagree. It will come down to whether you think our present course of action of electing more people to Washington that tell us they will do something....and we wait, and wait, and wait...and but save a few...they stab us in the back once they begin to taste the intoxicating power of Washington...It will come down to whether you think that strategy is working.
At the Convention of States Project....we've had enough. That strategy is clearly not working and we're ready to use what the founders/framers gave us in Article V. They are screaming at us from 1787 to use what they gave us. It's not perfect and it wont be easy, but it is the lawful and orderly process written into the Constitution for the people of the states to deal with an out of control federal government.