Figment just started his feeding every two week schedule, versus every week. I weighed him today at 645G, virtually unchanged from the 650G last weight. He was empty, of course.
He seems no worse for the wear. Still happy, calm, and docile.
I will try this out for a month or two and monitor his weight. If he starts losing, I will feed a little more frequently, if he maintains or grows slightly, I will keep this schedule.