I really don't know what your problem here is. You mark up my comments to "fix them for me" then mention you like quantitative information on the subject. I look 2 minutes and find supposedly a controlled test by Bridgestone with a couple pictures showing there was, at least with that tire, a measurable difference. It's not personal, don't make it so.In a similar vein, why give away extra grip you might need by intentionally riding on anything less than an ideal surface?
Here's the problem: you're making this sound as if I had the tire installed that way on purpose or that I advocate doing it, neither of which is the case. It was an accident from which I was able to collect a few unscientific observations about one incorrectly-mounted front Bridgestone BT020F mounted on one ST1300 operated by one rider compared to one correctly-mounted front Bridgestone BT020F mounted on the same ST1300 operated by the same rider under similar conditions and with the same riding style. The most significant of those observations was "on the whole, it doesn't seem to make a great deal of difference."
Finito.
--Mark
If you feel I'm distorting your contribution here I suggest coming back in a few days and reread it with a fresh set of eyes. Thanks.