What If? Scenario #1 Magneto & Molecule Man

In an infinite array of similar though not quite identical realities, each of which contains a version of the planet Earth...

What if it was Max Eisenhardt/Erik Lehnsherr who was transformed by the lab accident which created the Molecule Man, instead of Owen Reece?

How would that change him? Would he have more or less control over his wondrous new abilities than Reece had due to his own mutant powers?