[dellagd]

The only opportunity for bad Gracious Professionalism here is in reneging on any agreements with your opposing alliance. Your have the right to make any rule-abiding strategic decisions with your own alliance that you want. However, if your opponents come up to you and ask what your plan with the center cans is, maybe because they don't want to risk damaging their grabber in the quals or whatever, and you lie to them, then that is un-GP.

Just saying you'd rather not say is perfectly acceptable too, even if it might come off as a little coy in a qual match. In my experience, a simple conversation with the opposing alliance's coaches can solve most center can issues pretty quickly.