Question about obtaining accurate Tc value

[tyj]

I'm wondering how do we know our computed Tc is converged or reliable. I'm thinking there are two factors:

• The number of q-points used in ph.x step

• The fine mesh grid density

Is there any other factor that affects result?

If we do the convergence test w.r.t the above 2 factors, which one should be done first? Each of them is quite time-consuming, and epw step requires lots of memory. Also during the test, is there any tips that we can follow so that we don't need to compute same thing multiple times? Like when testing fine mesh density, will setting wannierize=.false. work if it already wannierize before?