[PyMOL] invoke ramp_new without drawing 'ramp' CGO

Dear all,

Is it possible to invoke ramp_new and have it not draw the 'ramp' CGO?
 It's easy enough to hide the CGO when working interactively, but I've
yet to find a way to zap it from a script (without also getting rid of
the colour ramping itself).

'hide everything, my_ramp' doesn't seem to hide the CGO, and issuing
'delete my_ramp' from within a script kills the colour ramp before it
gets applied (to a surface, in this case, despite the order of
operations in the script).

Thanks,

Stephen

-- 
Dr Stephen Graham
Division of Structural Biology
Wellcome Trust Centre for Human Genetics
Roosevelt Drive
Oxford OX3 7BN
United Kingdom
Phone: +44 1865 287 549