S:CS MaxWeight-500 Steam

but it has not been tested. The max weight has been increased to 500, but I've included instructions on how to set it to whatever you want. As usual, use at your own risk. Saved games should be unaffected and your PC should not catch on fire.
This weight mod will work with Stalker Clear Sky version 1.5.04 as delivered by Steam. Some of the earlier weight mods cause SCS to crash the Steam version. It may also work for other SCS version,