I'm going to build op a Specialized P3 frame for some 4X/DS/bmx track/playing around town use.

It comes standard with a Rock Shox Argyle fork, but I'm looking for something lighter.
The options I'm looking at are the RS Sid rct3, Reba rlt, or a lowered Revelation rct3.
I'm not sure if the Sid perhaps is too light for this kind of use, and then should go for the Reba or the Revelation.

Some advise here would be appreciated.