[Quicksilver]

Originally Posted by Tippy

Assume you're being facetious, no?

RWebb isn't on here anymore (Post was in 2009) but his comment has some merit.

Increasing performance means that missing the mark as an operator has a much higher chance of making a noticeable failure. All cars are compromises so if you want one thing you are giving up another. Handling is the obvious example. To get that last 10% in cornering you give up comfort (and kidneys!) and if you miss use it instead of hearing a little tire howl you spin off into the tulies.

In the case of a transmission you have a number of ways you can judge it. You can look at power transmission ability, reliability, ability to absorb punishment, weight, ease of operation and feel.
To correctly use a 915 you must know HOW to use it and be able to contain impatient urges. If you move your hand too fast you are damaging it and if repeated it will fail at some point. If you contain yourself it will work for a long time.
A G50 obviously has a much higher ability to handle torque but that isn't an issue for most non turbo cars. The other thing is the G50 has a much different type of syncro that will absorb more ham fisted handling and will shift faster when forced. The down side of it is that it coddled the driver through aggressive misuse by masking all problems until the syncros finally wear out. There is still an advantage here in that it took much longer for the problem to be noticeable by the user.
The best solution is to shift with your FINGERS instead of using a FIST. Feel the syncros and the engagement instead of trying to ram it in a bit faster.

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Oh and the Lexass bit is completely accurate. You never know what is going on in a Lexus you see on the road (especially a white one) but odds are it won't be able to pass a Prius. (I really think Lexus built the LFA to prove two things: 1) It is possible to make a Lexus move quickly. And 2) The reason they are slow isn't the car. It is the drivers that pick them.)