As an FYI my males are on a three week feeding schedule for the same size rat. So, if they eat they don't see a rat again for three weeks. If they eat then then they wait another three weeks, otherwise I offer every week or so until they eat again. Also most also don't eat while in shed so I would wait to feed them until after that.
The vast majority of snakes in captivity are overfed. Personally if your feeding schedule is working for your snake then I wouldn't change it.