For what it's worth, I grabbed a O3 Speed Port Tour on a whim off of "The Bay" for $20 in immaculate condition, just to try it, but really expected to "flip it" for the $60-$80 I usually see them go for.
So I tried not to like it, as Pro Staff 6.1 95's are my stick of choice, but more and more I find myself going to it! On days when my Classic 6.1's stiffness is making my arm a little fatigued, or the swing weight is a tad too much I now make the switch, and it has gotten me out of a few 2nd set slumps.
Weighing in at 12.2oz with my set up (Syn gut at 55, open ports, 1 Overgrip and rubber band) I find it the perfect compliment to my PS's...ease of spin, precise "poppy" serves, and I can effortlessly slice backhand saves, when caught in no mans land, that reach the baseline and give me time to get back.
It does produce a little less "weight" on the monster returns I can get off the Wilson's, but all in all I can whip this thing around a little easier and produce winners.
In short it has become my go to stick when ever slightly fatigued, facing a more powerful/faster pace hitter, or on clay for the ease of spin.
If you can get over the full on ORANGE (mine even had an orange overgrip...yuck, had to replace that), it is a great find. The "Bay" seems to have a few each week, and you can find them in the $30-$50 range sometimes since they are relatively unknown due to their short release around 2008-2009 (replaced by the O3 Tour...which has 100 as opposed to 97, and lighter).