LAMS restricted vs full power ecu

A conversation with a friend led me to wonder, what is the difference between the LAMS-restricted and full power versions of the SV650?
Does anyone here know? Friend reckons not much difference (ie not worth doing when one finally has a full licence)

Google searches return only old results with comments about clipping wires - not useful comments on actual performance.

LAMS restricted vs full power ecu