Without a GPS, you won't know if you hit the limiter or you just stopped pulling. You can't hear the limiter at those speeds, and you can't feel it unless you hit it HARD. On a stock busa, you're not accelerating very quickly anymore and the tach moves slow.
The TRE limiter at 10,200rpm is just that...a limiter at 10,200rpm, not a specific mph. You can gear the bike shorter and it will hit the limiter at a lower mph. Hell, if you're running on a worn tire it will hit the limiter a few mph sooner as well!
So unless you've got a GPS to show a mph.... saying you hit the limiter is rather meaningless because
A) you may have not even been hitting the limiter, the bike just ran out of steam and stopped pulling.
B) the limiter could have been lower than 186mph because the limiter is based on RPM not speed.
Until you've made a run with a GPS, you haven't done a top speed run because you don't know what your top speed was..... all you did was go really fast. Take that and 99 cents and you've got yourself a cup of coffee.