Staying within the manufacturer specified pressure range and staying with a tire brand of at least the same quality as OEM equipped or better is the formula that works.
Otherwise, answer CapriRacers comments in full.
A few tenths doesn't pay for top quality tires should their life be reduced. The handling/braking/ride trade-offs have already been done.
Otherwise, show us where a percentage pressure increase -- contrasted to the full OEM range -- really works.
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