hi, i would prefer a general prob, cause i would place it were and how it should be , otherwise you need deforce and i think nobody would be satisfight with the result if you are a realistic fanatic like me , LOL,, i would suggest bending curves what make it more easy for the first sit ,like on several pigtails or lashes, i created something using a chain and parented spheres at the parts , put a shader on it and it works great,but its a mess to control the bending and it also was a lot of way to short , so i gave up ... ( for others maybe work a deforced closed one , like on long hair , but i am not that experienced with that feature .
I use it also for bracelets , or ankles , or at the hair , or at the belt , so i am not into parenting it at the neck, but maybe both can be done in one package :D
Anyway thanks for your interest ,
TOM