Still not convinced that increased tire pressure has any positive effect on puncture resistance.
Lots of anecdotal testimony that it does but what if I argued that riding my 90psi max front tire at 50psi all year has prevented punctures? Haven't had any punctures but I don't believe either max or minimum pressure prevents punctures.
I have come to accept that 15% tire drop seems to result in optimal pressure for best comfort and performance.
http://www.bikequarterly.com/images/TireDrop.pdf
Those of us riding on not-so-narrow tires can probably take advantage of tire pressures much less than max - I'm 185 and use tires in the 32-40mm width range.

By all means, use what works for you.