Rejuvenating mod bugged?

[arrhyka]

legendary rejuvenating mod says 15% hp recovery with every kill above 60% hp, feels a lot less, anyone else noticed this? it actually feels more like 1.5%

[Puskai]

I think its 15% of the health missing. Devs have huge problems with descriptions.
Take the SCAR for example, it still says that it has 4% chance to proc shrapnel, but in reality it procs every 4th hit.
That's known issue since closed betas I think and they still haven't fixed it.
Some description you read 20 times and still don't know wtf are they saying

[weeeEHH]

Its bug. Ive been using this mod since July and what ive experience is that. When health is below 60-50% a kill heals you 15% recovery.

When Hp is above 70% a kill heals you at 5% max hp. Sometimes it doesn't heals you when Hp is below 60% thats why its buggy.