Possession Tradition Tactical Manual, for GMs as well as players Options

[pbangarth]

Recent discussions elsewhere on DS prompt me to start this thread. I would like to engender a discussion about the practical ways possession can be used in game play, and the practical concerns that might come up in a player's or GMs mind about powers, abilities and side effects.

There have been enough discussions about whether possession is 'broken' or not. We don't need another thread going over the same ground. Nor do we need to compare how possession is better or worse than materialization.

What I do want is practical, tactical and nuts-and-bolts. For example, from recent posts elsewhere:

Energy Aura is fun. But what if you don't want to set fire to the floor with every step as you enter the facility?

Another issue is the cost. Bullets are cheap. Grenades are cheap. Even whole guns are cheap, in comparison to binding materials. If you want a Force 4 spirit on hand to boost you up when needed, that's 2,000¥ you'll pay out. A lot of money for one or two fights. I've had my group on runs for only 5,000¥ each. Does the character really want to blow nearly half their pay on spirits before they even get started?

For issues such as these, what I would like to see are posts dealing with:
1) How does one using possession account for and overcome difficulties?
2) How does one using possession make innovative uses of the abilities possession gives him?
3) How does a GM have fun challenging users of possession?
4) What things could really nail a user of possession to the wall if the GM could only think of them?

Information such as this would help both players and GMs come up with better play. I'm looking forward to a very informative discussion!