For what it's worth.
On 10 May 06 the Deputy Chief of Defence Logistics (DCDL) Mr Tim Flesher has invited all DLO staff to "Ask the DCDL" work related questions. His answers being published shortly afterwards. I will see if I can get a question emailed to him regarding proposals for Explosion Retarding Foam on all RAF AT and those Royal Sqn ac employed on Ops. I make no guarantees that I'll get a reply though.