One of my favourite tris, so good choice! Lovely swim, nice wide start so nice and easy! Take care to sight in building/crag on far side. Then beware weeds as you go round the little rock island – scared the life out of me first time as you come from nice dark blue deep water to man eating plants 2″ from your goggles!!! Ride is quite a challenge. Matterdale climb gets the heat rate up, then fast run down Penrith-Keswick road. Take care on narrow roads in St John in the vale!!! Brilliant fast descent down Dunmail before The Struggle!! I actually think first bit of road up Kirkstone is harder than TS but not the consensus view. Descent is v fast and slightly scary IMO!!! The climb by the burn at the start is hard. Not many run it all!! And the descent is a little loose, I still have the scars several years later!!
All in all a brilliant event, enjoy!!
Think about bike comfort and gearing. I had a triple on y road bike specially for this!!!!!