One word of unsolicited advice for those who start with PBeM: play a large scenario. The reason is that (at least in my experience) the number of logs does not depend on the number of units on the map. A scenario with 10 squads requires as much logs per turn as a scenario with 500+ squads. Additionally, those large scenarios are the ones which for practical reasons you will probably never play FtF. At the other hand, when first venturing into PBeM you may want to initially avoid scenarios with a lot of AFV vs AFV action, given the heightened interaction in such engagement. (When your Sherman is about to flank his Panther, it is vital for you to know whether he shot an MG to change VCA prior to stopping your Sherman, typically giving rise to the instruction: stop log if any of your AFVs does anything.)