Not only will they last longer but you dont get the drop off like you do with nimh we are using them in 1/12 but only 1cell where the buggies have 2cells with the new advancing esc the 10.5 pro stocks are only about 1 to about 500 of a second off the modified pace.
After use make sure that they have a storage charge put back in them dont run them till the car stops if the car slows stop at once o

r damage will occur make sure that you set the lipo cut off on the esc
only charge at 1c i.e a 5600 cell is to be charged at 5.6 amps a 4300 cell would be charged at 4.3 amps if you buy high capacity cells make sure that your charger will charge that high and dont forget that cells are getting better and higher capacity all the time.
Less hassle nimh are past it