If you recently bought a Leopold FC980C, you've likely made a significant investment, and the R3 isn't exactly budget-friendly either. It's like comparing apples to tomatoes—they have different layouts, which is the main factor in choosing between them. Do you prefer the Leopold layout or the R3's? Once you decide, your choice is pretty much made. The R3 offers some new, cool technology like APC, but if that doesn't interest you, it's not really an issue.