jmdsm,
IIRC, there are no component penalties below 4000lb on the S-92.
Between 4-8000lbs there are huge penalties on the gearbox and restrictions on time spent doing load cycles per hour, rendering the S-92 basically uneconomic to use in the repetitive heavy external load category. I'm sure this is to do with what has been previously discussed here, but also to do with the OEM not having any plan as to what the S-92 does next once it's done in it's offshore role.
A rough rule of thumb was around 90% reduction in component life on the dynamic parts even if the cycles with weight attached part was obeyed.