Something I was working with ...
Centering
The use of psionic powers exerts an often severe drain on a Psion's mental strength. This is reflected in the expenditure of Psionic Strength Points, and the subsequent reduction of the Psion's current Psionic Strength characteristic DM.
Some Psions have learned a technique called Centering. Through certain exercises, both physical and mental, a Psion can stabilise his mind and focus more of his will behind a Psionic power. The result is a reduction in Psionic Strength expenditure - a lessening of the drain.
In game terms, in any non-combat situation the Psion extends the time frame for use of the desired power by at least 1 (so, for instance, a power requiring 1-6 seconds now takes 10-60 seconds) and makes a Psionic Strength characteristic check after activating the desired power, but before spending the Psionic Strength points.
In a combat situation, the Psion may instead choose to penalise his initiative score by at least a -1 DM, and makes a Psionic Strength characteristic check after activating the desired power, but before spending the Psionic Strength points.
A positive Effect on this characteristic check offsets the Psionic Strength point expenditure. Psionic Strength expenditure on a given power's activation may not be reduced below 0 - in other words, the Psion may not gain Psionic Strength from centering while using a Psionic power.
Of course, there is a risk - that of a negative Effect, which adds to the Psionic Strength point expenditure, reflecting the cost to the Psion's psyche as latent psychological complexes bubble up to the surface, disturbing the Psion's calm and concentration.
For example, Shrupa Morvery has Psionic Strength 9 and wishes to activate Tactical Awareness over Medium range - requiring expenditure of 3 Psionic Strength points.
She extends the timeframe for activating this power by 1 factor, taking 10 - 60 seconds to activate, and makes a roll of 10 on the characteristic check. The Effect of +2 is offset against the cost, meaning that Shrupa only needs to spend 1 Psionic Strength point.
In a combat situation, Shrupa could instead have penalised her initiative score by -1 to allow the activation of this option when activating her Tactical Awareness power.
Extending the time frame further than one step, or accepting a heavier penalty to initiative, grants further DMs to the characteristic check: each extra step of timeframe extension or additional initiative penalty grants a +1 DM to the characteristic check Effect.
To continue the example, Shrupa decides to accept a -3 initiative penalty in a combat situation. She now has a +2 DM to the Psionic Strength characteristic check to offset the costs of using any Psionic power she wishes to activate, for as long as she continues to accept the initiative penalty.
New Skill: Meditation
By training in advanced meditative techniques, a Psion can in effect learn to centre her mind. This skill replaces the Centering technique above, and has the following use:-
Offset Psionic Strength point expenditure, Meditation, Psionic Strength, Special, Average(+0)
The Effect of this task check is used to offset Psionic Strength Point expenditure when activating a Psionic power. The time frame for this task check is equal to the Psionic power being activated, extended by one step. Thus, for instance, the Meditation task check for the Life detection Telepathy power has the base time frame of 1-6 minutes, including the time taken to activate the Life detection power.
New Gear: Meditation Kit
As simple as a prayer mat or set of rosary beads, or as complex as a full shrine, meditation kits allow a Psion to set aside a place for his mind to achieve stillness. This grants positive DMs to all Meditation task checks and centering checks.
Small Meditation Kit (rosary beads, small amulet) : +1 DM : 200 g : 5 Cr.
Large Meditation Kit (prayer mat, temple gong, large incense burner ) : +2 DM : 5 kg : 150 Cr.
Meditation Shrine (all the above, plus a small altar incorporating meditation symbols, data wafers of soothing music etc.) : +3 DM : 50 kg : 500 Cr.