Another small, but potentially useful addition: The standard classification scorer offers the scoring results as flow variables, wheres the numeric scorer node does no such thing -- a shame! But it looks like it could easily be fixed, couldn't it? :-)
I agree, that does sound pretty reasonable :-) I opened a ticket, our developers will look into it.
just to follow up on this one, there is actually the option to output the scores as flow variable in the configuration dialog of the Numeric Scorer node. I hope that this should do the trick?