From Tribes Ascend Wiki
Lightweight reduces your mass by 30%, creating stronger disk jumps, but more than triples the delay before health regeneration takes effect. This perk is intended for advanced chasers.
- This perk was created specifically to benefit Chasers, as it allows them to reach incredible speeds very quickly in order to chase down cappers. The increased delay between health regenerations is irrelevant to chasers, as a good chaser will simply kill themselves by pressing K after returning the flag.