Pulse cranking amps is for all intent and purpose hot cranking amps, available for the the short time it (should) take to start the car. Although it doesn't have an official definition it's more akin to everyday use than CCA.
I still maintain amp hour battery capacity is the more important parameter as it's that which errodes with battery ageing. Better to have spare capacity therefore for longevity, as without an adequate amount the average Mog used lightly over the winter won't start if there is not enough to support the required cranking amps.
