Summary templates, Rollup groups and summary accounts questions.

Hi

I have questions about Rollup groups and parent flex field values:

• When disabling (uncheck) a parent value is it a good usage or essential (or not) to remove the rollup group assigned to this parent segment value?
• Otherwise what may happend if a disabled parent value is still assigned to a rollup group?
• My advice is it may cause overhead when launching add/delete summary template.

Thanks

Réjean