I question the test though, because how much of the butt-kicking is your kensai and how much is the celestial fury? Try a katana +2 as a better indicator. Geedubya uses the Celestial Fury as well. In a duel between the two, I suspect whoever stuns the opponent first is going to win.
The reason Amoen beat Minsc was because of the severe slashing penalties (-4) a sword gets against full plate mail and the lack of penalty when using a blunt weapon. Minsc might have won using the flail (which slows) and a mace.
As for not having enough points as a thief when dual classed, I disagree with that. The dual class thief rises in levels faster than any dual class. In addition, I can use armor that increases stealth ability if I chose (the Umar Hills armor). I find with my percentages in the 90s, this is not really a problem. It doesn't take long to max out on skills as a thief, and at that point you will regret not having more levels as a fighter.
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