The ones I have are in my rat rack right now (temporary measure) and they are doing great, no chewing (to busy with their wheel) and are not jumpy at all.
As far as tub chewing and rodents I notice that the main mistake people often make is either provide tubs with a ridge or allowing too big of a gap between the tub and the frame.
The ASF will likely stay in the temporary tub for a month or so before I start building a new rack so I guess by than I should know for sure which route I will chose.