While I have seen the occasional red livery unit on west coastway, a journey I did out to Pevensey yesterday seemed to have a large number of Gatx units providing the service from Brighton to Ore/Eastbourne. Is this due to a shortage of Southern stock or a surplus of Gatx ?? Interestingly the platform PIS I observed alerted passengers that the service was formed of Gatx stock and the onboard announcement referred to us being "welcome aboard the (slight pause) service to xxx" so no reference to a TOC.