[williamvds]

I respect your intentions, and if the CLA is truly restricted to relicensing as MIT or dual-licensing, I'd be more willing to use it.

I would hightlight that the dual licensing in particula introduces the issue of sharing any profits with other maintainers, if there are several. Personally if I'm submitting minor patches I would not bring this up, but it deter people from wanting to be more actively involved.

Depends on the size and scope of your project, I guess.