I've had a centerstand on mine virtually since new and I haven't grounded it yet.
The sensors with the centerstand I got were of unequal lengths. The left-hand sensor is longer for the centerstand because of the stand's foot-lever that protrudes on that side. Both sensors are longer because the stand reduces ground clearance a little when the bike is leaned over.
I fitted mine on my own and it took me about an hour thanks to some advice from a mechanic. You don't have to remove the headers/drop the exhaust. By removing the left and right fairings, the mufflers and the bolt that attaches the headers/downpipes underneath the engine, it's possible to use a pry bar to lever the pipes down just far enough to get the centerstand bolt through the mounting holes. It took me a few attempts at getting the springs on, I used a screwdriver for leverage.
I did some serious leaning through the mountains on the bike last weekend, with myself and the wife on board and I still haven't been able to touch anything down yet. I have set my suspension up so that it's firmer/has more preload and rebound damping than stock though, and I run 42psi in my tires front and back if that makes any difference.
I would imagine that the sensors are set for the worst-case scenarios e.g. softest suspension and full dive on the front under heavy braking then cranking it way over etc.
I like having a centerstand because it makes it easy to work on the bike anywhere, and offers an alternative to the sidestand when conditions aren't favorable, filling the gas tank, working on the left side of the bike etc.
The "hole" under the seat on the left side is designed for your right hand to grab the frame when raising the bike on to the stand.