Yes extra rate is the same whether you choose 40 or 60 minutes.your post doesn't make sense, can you explain it again? so if i go and pay for 40 min, or 60 min, that is the room fee, which is variable, which is understandable as i am paying for their time. and the extra rate, lets say it is +$100 for FS, is the same for whether i choose 40 or 60 minutes right?