Its very difficult to use a c spanner on the standard exhaust routing, the 2:1:2 of the race termi system makes it a lot easier as rear pipe drops down not up towards end can. Well, thats another justification for skinting myself with that 57mm system
talking of preload, i've now swapped to a lighter rear spring(64 kg v's 75as stock) on my 999S bip, rear traction out of bends is way better and its helping bike turn better which i was surprised at as it should slacken head angle. Spring might be a bit soft as I'm having to run spring length at 145mm so thats 15mm of preload and I've got 37mm sag with me on bike. Anyone know what max preload on an Ohlins spring is??