a lot of questions...I' m not an expert on TS but I' ll try to answer some.
Having the TS in a policy offers more flexibility, as you can shape download and upload traffic independently. To have the TS effect limited to the application you are targeting can be a little complicated though. If it' s determined by ' service' , OK. But in other cases (like ' Facebook downloads' ) you have to resort to AppControl and its shapers.
BTW the 5.2 manual states that both shared and per-IP shapers are available in AppCtrl.
Quotas were once a part of FortiOS. I think (but am not sure) that they are not available anymore in FOS 5.x. Maybe you could read up for that and update us on it.
HTH.
Ede
"Kernel panic: Aiee, killing interrupt handler!"