I find it slightly odd that we set pressures cold! Great if you use nitrogen but seems silly if you use good old air, I aim for 42 front 48 rear when hot, so I set pressure to suit circumstance ( when I can be bothered ) I take a bit out of the rear if going on a loaded journey, I also run higher cold pressure in winter to compensate for lack of warm up, I find the front is more important than the rear