But after the first treatment IMO the pods are probably toast anyway ... if they're already dead, how will a second treatment change things?
Just my take - and I know about Eric's `no larval' post - but it seems like he even suggests they are very tough to spot, may live through a single treatment.
[maybe it's my experience with flatworms - but it's easy to kill all but one pest ... and a month later have to do it again IME]
But hey - your tank, your decision