[cypher]

Adorable photos I'm so in love with this little guy!

I've had a couple of Russians who used both saucers & wheels but seemed to prefer the saucer although never using it exclusively, Flynt probably used mostly his saucer rather than his wheel all his life & it never did him any harm.
I wouldn't worry too much, taking the saucer out probably would stress him & he has been through a lot, still early days for him really. I would leave the silent runner in the cage, maybe put a few seeds in each night to encourage interest & he might take to it with time.