Thanks for the explanation, at least I won’t look further for any local configuration mismatch.
There is another avenue of using the relaxed pose as a base for additive, however then the end fully gripped pose is likely to have some clipping.
That’s what I tried when noticing the issue, but as you say, the gripped pose then presented issues so I did not pursue the investigation.
I am not in a hurry, so I’ll wait for possible enhancement (in terms of fine-tuning the curls in a somewhat decently easy way) in that regard in the future.