Hybrid vs Enhanced Translucency support

Some confusion over ‘hybrid’ vs ‘enhanced’ translucency support with CVars.
https://github.com/NvRTX/UnrealEngine/tree/NvRTX_Caustics-5.4?tab=readme-ov-file

1
Is ‘Hybrid Translucency’ dependent on first setting
r.RayTracing.Translucency 3 (Enhanced)

Or is ‘Enhanced’ synonomous with ‘Hybrid’ ?

2
Also what happens with
r.RayTracing.Translucency 1
r.RayTracing.Translucency 2

The documentation only refers to 0 and 3.

3
Is r.RayTracing.Translucency 3
what is referred to as ‘method 2’ and also HT2 mode?

Thanks!