I did the Scottish one at Drumlanrig and overall it was a bit rubbish and you left feeling a bit ripped off. Its not particularly hard and I’d challenge the ‘toughest event on the planet’ moniker. Physically its quite easy just painful sometimes. Thats not to say don’t do it, cost is relative an all that but IMO theres better out there (for instance The Mighty Deerstalker is harder,colder,cheaper and has a better atmosphere). Overall I was underwhelmed, not to say I didn’t enjoy bits but I won’t be back.
If you are set on doing it, to get the most out of it treat it like a team building exercise. Get your team together, train together, get your weakest guys stronger slower guys faster etc. And get a good fancy dress sorted. The team dressed as the mulleted kidnapper/fan from the Chilli Pepper videos were inspired.