Not necessarily as it depends on how you drive. S map is the adaptable
one that effects gear change points and number of gears used (depending
on the computer used; it could be 3 - 5 sets). C map is the constant set
(not adaptable) which could be one part of the S set and is more likely
to start off in 2nd gear. But if you plant it all the time in C then
there is a chance that your economy might be adversely affected. Vica
versa if you drive quietly in S then the computer adapts the gear box to
a 'quieter' and more economical style (but not necessarily the C set)
but if used vigorously then it will adapt styles to a 'sportier' series
of change points which at speed could be more economical.
If you know what I mean (this was how it was explained to me by the
service personal). I decided to believe them! If you get a system reset
at your service then all the adaptabilty reverts to basic (including
throttle) and needs to 'learnt' again over a period of several start ups.