ailerons on full scale TYPICALLY have ailerons interconnected unlike our LOUSY individual servo ailerron setups - so aileron loads are low.
On the elevators - the counterbalance will lessen the stick forces necessary to move them.
You NEVER want stick loads to be less than zero -but the use of spades etc- can bring aileron stick loads to zero -if that is what you want .
The 300 Extra for example is a thumb and finger load type force for ailerons-
On our models each aileron (NOT interconnected is constantly fighting the servo for position.
sometimes the ailerons win--
interconnected ailerons counter each other and a servo moving this setup sees small loads.
models went to individual servos years back - to gain more control and individual control per aileron - frankly most individual setups suck - Done right they require good balance and LOTS of holding power from the servos.