"Way too placid" may imply that your temps are too low. Actually it isn't outside the norm for a snake to pass some fecal matter weeks or months after a feed. Despite there not being food going in for a month or more, they rarely void all material from their digestive tracts, so residual matter remains, and when combined with the leftovers of normal metabolism (which is ongoing, albeit at a slower rate when they are not feeding), it can manifest itself as a normal, but usually smaller stool.
The frequency and mass of snake poo is dependent on temperature, activity levels, feeding regime and probably one or two other variables in the animal's life. Unlike mammals, which have a fixed temp and therefore require frequent refuelling to maintain temperature and energy levels (and as a consequence are usually regular crappers), snakes are not dependent on regular meals because they don't have to be.
Jamie.