Sleeping on a X4 load of 1000lb'ers on a S type in an unheated Mk1 HAS was actually doable and oddly comfortable apart from the frost....installing the wiring to add spills was probably my least favourite working experience-3 days going round in circles in zone 19..highlight possibly could have been finding different idented lead seals front and rear on pre load checks ROFL ... but on hindsight best experience was being removed from sanger suffering from hypothermia (along with the rest of the off sector guards on 16 who had been in position for 23 hours in minus 15 and 2 feet of snowfalling) saw out the rest of maxival in med center wrapped in hairy blankets sipping tepid soup-bliss apart from feet...they weren't too blissful..