The present invention relates to methods for using zwitterionic polymeric suds enhancers to increase the suds andor foam volume and suds andor foam retention in suds-forming andor foam-forming compositions comprising such zwitterionic polymeric suds stabilizers. Frequency tuning a DRG in a single step informed by a systematic physical model of the resonator structure, sensing and actuation elements, such as a finite element model, is provided. Such an ink jet fluid composition and printing process can be advantageously used to produce durable and water-insoluble imaging elements.