Something I'd like to suggest the RS tour department think about:
On my last RS tour, there was a tour member who was skirting the no-smoking policy by using an e-cigarette while in our group. This bothered me since I'm sensitive to cig smoke and for me, one of the attractions of RS tours is the ban on smoking (even if in Europe it is commonplace).
Since e-cigarettes aren't exactly under the same legislation as cigarettes, the RS tour department might want to think about if they want to mention something in the tour agreement verbiage to address if using these e-cigarettes are OK or not.