I think your SA is right.
I am not have a Regular Juc, but had try on Regular Juc with Diamond at the boutique
I have moved up at down couple time.
And noticed it have indentation on my love cuff.
However Regular Juc it not suit my small wrist.
So purchase Sm Juc with diamond instead, And wear nail tip against the love cuff.
Yeah I really think the best option with this stack is having a bracelet in between that wont show surface scratches. I’m thinking my clash, but then worry about the clash scratching the JUC!