Difficulties

[c0ncrete]

you could always add a custom event in the source that is fired off when a player changes equipment. then you could check their current equipment in that event.

that, or you could consider using a timer in the global player script and have it check periodically.

[Mariomario]

I was actually curious on something like this myself, but for a different purpose from armor set bonuses. As far as adding the custom event that wouldn't be too hard, but where at in the source does it evaluate when a character switches equipment? Client.cpp?