Sounds like you have not purchased V14 yet. If you did before tomorrow you’ll get Mercalli CMOS fixer in the deal .. Once installed it will also work in V13. Fairly sure about that. At least it seems to for me.
V14 will cost you $249 and would include CMOS fixer but you can buy CMOS fixer separately for $120 right now.
I have the Mercalli and frankly I like Sony’s Stablizer better for my use. It’s faster and easier to use than Mercalli. Of course, I don’t have tons of really problem footage either. Real Problem footage is where I think Mercalli shines if you spend the time to learn how to handle it.