Macruz19- I agree that you already have things looking nice. Going to the next level might be a lot of work and I often think that people get some unrealistic expectations from being around this website. Heh heh, yeah, that's more of my Autopian Heresy
I use a fair bit of pressure when doing correction via PC. The 6.5" pads tend to *not* lend themselves to this very well- the friction causes the PC to "bog down" and merely "jiggle". So for any significant correction I use 4" pads. These allow you to apply more pressure and they just generally behave far more aggressively. So I'd get a small backing plate and some 4" pads and see how that works out. But that's *if* you're truly unhappy with how it looks now
Don't go by what other people post here, go by what it looks like to you and how you feel about it.