[BPNWMike]

The shorty clutch may be at one of the supporting vendors.

The "variator weights" and roller weights are different names for the same thing. Roller weights are the weights that go inside the variator and are therefore "variator weights". They are round in shape and literally roll into place from centrifugal force - hence the name "roller weight".

"Slider weights" is what I think you meant to ask. They are also weights that go into the variator and are shaped kind of like a stylized capital "D". Because of this shape, they SLIDE inside the variator from the centrifugal force and so are called "sliders".

They perform the exact same function. The difference between them is that rollers develop flat spots over time and stop rolling and you'll get a jerking sensation from the vehicle because they are not able to move smoothly. Sliders are already flat on the sides that come in contact with the interior of the variator and therefore will not have this same problem.

Sliders also can better push out the top plate to give you the full range of the variator than a roller can because the slider's shape wedges it into the fully extended position.

Lastly, sliders tend to give a smoother overall acceleration and deceleration than roller weights do.

The way a lighter or heavier weight affects your low end or top end speed is essentially the same regardless of whether it's a roller or a slider: lighter weights give more low end, heavier weights give more top end.

An aftermarket performance CDI allows you to achieve higher RPMs and often has some advanced ignition timing at the top end. This can really be helpful when you're using lighter weights in the variator because lighter weights = higher RPMs. If you've got a rev limiter in the stock CDI and you go to light weights, you might be hitting that rev limiter all the time and lose even more top speed than you should be - but because of the CDI.

In this instance, replacing the CDI with a no-rev limiter version will allow you to gain back those RPMs (and lost top speed) lost with the stock CDI.