Now I don't know a whole lot about wet weather techonolgy but what it sounds to me is that the carbon breaks go away in the wet because of the drop in temperature which causes the riders to be breaking nearly as deep and then pushing the tires. What I have heard in interviews by Randy Mamola and John Hopkins is the difference between rain and slick tires is very little when it comes to grip. The tire creates so much heat that it instantly burns away all moisture thus creating equal grip. So the way I see it is that the only reason for a rider to come in is because the temperature is too cold for carbon brakes and have to switch to steel and as long as they're changing bikes they may as well go to the rain tires with a smaller contact patch. I think it's a fine rule, it doesn't allow the leader to dictate the remainder of the race as in the past. Unless there is moderate to heavy rain there won't be a huge decline in times, I look forward to such an event where we need tire changes. Crews need their time to shine too!