dirke,
that does help. i got another reply from an ecole chocolat grad and she surmised room temp as well. could be my room temp, though i dipped the other half of that same batch of caramels yesterday - kitchen was around 63-65, and they did great. BUT, i did NOT oil my knife before cutting them. seemed risky but they cut great and dipped beautifully. i will also pay stricter attention to my room temp when doing the caramels - i guess they have sharper edges than my slabbed chocolates and are more likely to poke through if the chocolate shrinks upon dipping.
best.
c.