Here are my rules of thumb:
I set the deceleration
momentum (CV 4) to half of
what I set the acceleration
momentum (CV 3). Model
train operators don’t always
think very far ahead. My
observation is: if the train
slows at the same rate that
it speeds up, more crashes
occur. Non-Sound decoders,
I use a minimum of 2 in the
acceleration momentum (CV
3) and half that in decelera-
tion (CV 4). I find that a maxi-
mum of 8 works well, see
figure 10.
Sound decoders, I use 10 to
40 for acceleration (CV 3)
and half that in deceleration
(CV 4).
I recommend you find a
throttle response that works
for you and make all your
locos run the same way. If all
your locos respond similarly,
guests can learn how you
set your locos and work with
it. If every loco is different,
be ready for some cornfield
meets. Note that this will