Seems several drivers have reported to Futaba that the Futaba 4PKS-R radio felt a bit different then what some drivers was expecting. It turns out Futaba found that those drivers were correct. Futaba typically sets their radios throttle mode (THMOD) to a default of 70-30. However the default setting on the 4PKS-R is actually set to 50-50 instead.
Futaba has provided a super simple and quick fix to reset it to 70-30 using these super simple steps.