Too much of everything is bad.Even if it is very tasty.
So every thing should be given moderately. Specially for advice, it has to be moderate.
I feel you should contact your downline or team once a week in general.
However if some body is responding quickly,then the advice has to be given quickly too.
Your downline or team has to be divided into active & non active groups.
Contacts has to be made in proportion to the response by team members