You did exactly what you need to.

When setting up ANY plane it is best to MAX out the throws as you've done, then make any adjustments to the linkages to get the throws you are looking for.

By doing so you give the TX the best ability to finely control the arm movements, especially around stick center where this is very important.

If you want to lessen rudder travel, ( though I go for as MUCH as I can get in all control surfaces and use the rate settings to tone things down... ) leave the TX as is, and adjust the linkage position at the servo horn OUT, and IN at the rudder horn.