As far as 'Parker pen' hours go - yes you CAN do it and get away with it, but people DO get caught, only last year there was an airline pilot up for command with his company got caught having made these entries - result - no job and a prosecution, if he had not done this he may have needed another year to get to where he had been, but in the long term that is not that long and he would still be employed and now in the LH seat. DON'T DO IT!!