Most effective way to reduce understeer?

[Anonymous]

But, doesn't it say raise front tyre pressure to reduce understeer?

It does.  In my experience, he is incorrect on this particular point.

[Anonymous]

Some of those corrections do seem counter-intuitive   s:?: :?: s:?:  (see also remove weight from front?). It does give you an idea of all the factors and their knock-on effects that can be involved in a car's handling.

The note at the bottom of their page is best kept in mind.

Note: This is a sample of the methods used to correct various handling problems. Books have been written on this subject. Not every correction will always work as expected. Stiffer front sway bars will, in many cases, decrease understeer because of reduced body roll and better camber control. The best rule is to change only one thing at a time and keep notes.

[Tem]

Something that makes something on one car can make the opposite on another car. All that matters is what people owning the same car have experienced with that car (and obviously your own experiments).