I've just heard an interview on R4 about the increasing use of passenger weight data on trains. It's been mentioned several times here that the weight sensors are used to assess the passenger loads and that this information will be made available to passengers on the 700s to allow them to find less crowded areas/seats. Something was mentioned though that on tilting trains (I assume 390s) the sensors determine whether the passenger load exceeds the maximum allowed for tilt permission. I've not seen this mentioned anywhere before. Have there been instances where Pendolinos have been forced to keep within the non-tilting speed because the passenger load was over a threshold?