Hi Turuk,
I always liked the quote that was attributed to Einstein and went something like this: "If we knew what we were doing we would not call it experimenting."
Simulate it both ways, or even better, build two versions in hardware to see if something useful happens. Then go on to see if you can figure out what is going on and how to control the effect.
I would be careful about improved s parameters. Just because less energy is being reflected, that does not mean that more is being radiated. Improved s parameters most often are a consequence of increased internal loss. S parameters are more easily measured.