Originally Posted by
79pmooney
I was going to add that some riders are hard on wheels and more prone to pinch flat (dent rims, cut and bruise tires, etc.). All who've mechanic'd a while know some of those. Those riders need more pressure than I do at my weight and on the same roads. That said, I don't like squishy tires unless I'm on ice or other very slippery surfaces and don't come close to pinch flat pressures.
What do you consider "squishy"? I ride 70F/80R on my 28's and 45F/50R on my 42's and I'm around 175lbs. That is a little higher than what the calculators display, but I'm lazy and only check pressures once a week or so.