"Own your lane" has more to do with other civilian drivers than cops, I suspect. After you've been riding for a while you'll find which part of the lane works best for you in different situations. For example, when traffic is light and spaced apart, I'll ride just to the left of center (out of the oily strip down the middle, but not all the way to the left). As traffic tightens up, I move to the right-hand portion of the lane to discourage people from merging into me and make myself more visible. BTW, I'm almost always in the far left lane. I like only having to worry about one side of me, and also having the option of the shoulder in an emergency.
As far as cops go, it depends on the cop often as not. However, take a look at your fellow riders in the area. Do you see a lot of squids, people speeding through traffic or riding wrecklessly? If so, prepare to have cops lump you into the same group. If people generally ride cool around you, I think cops may be a little more lax.
I haven't sat on a new GSXR, but if it's anything like my friends R6 you should start looking at aftermarket seats. His seat felt like a 1/4 inch sheet of foam rubber on hard plastic. Maybe I'm just spoiled by my Corbin seat

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