Parameters

Position[XYZ ]

Velocity[XYZ ]

Age

Life

Size[-∞..+∞]

Scale[XYZ ]

Mass[-∞..+∞]

Alignment

Spin

Shape

Group

DT Factor[-∞..+∞]

Color

Random Seed[-2147483648..2147483647]

Particle

Take two particle streams, get the alignment (orientation of axes) of one of the groups and use it to ensure that the particles of the other group are aligned the same way. All done with PGetData.