Question on Unit Ownership Change

As I say with every new thread of mine: Sorry if this answer exists somewhere, failed to come up with it with a search.

I'm coming up with some ideas for a unit system and I have a quick question.

After changing ownership of a unit (keeping their origonal color), would it be possible to detect somehow who the origonal owner of the unit was?

I can think of how to do it with arrays, but I'd like to keep away from that if possible.

Thanks in advanced.

-Ant.

I don't think you can. My suggestion would be to set the unit's custom user value to the player number of the owner when it comes into the playable map area.

That's what I thought.

Also, that was another of my ideas, I just wanted to know what options I had to me.

Thanks.

Rep.