No, nothing on calling for skins max-peck, just the date parameters, and ship calls. There are differences in file structure though, from one campaign layer to the next, and that's where my concern is. We have found that having one little "I" not dotted correctly in a campaign file can cause all sorts of strangeness. We're thinking, though not 100% certain, that the "super-spawn" of DD southeast of Tokyo was caused by two sets of DD set to spawn one every 24 hours on a northeasterly route. Their "termination point" didn't terminate them, so they kept driving around the world, looping back around to their origin, gradually adding to the "armada", until they stretched from horizon to horizon... maybe. But that's what it looked like in the Jap_HarborTraffic file if you "played" it in the ME... quite a sight by the time 1943 rolled around...
