Cheaper yes, quicker NO. 25 min turnrounds, >3hr flight = >9000ltrs @ 750lt/hr = >12mins just to pump. Add on connect, disconnect, sign the receipt and climb upstairs = 20 mins. That's 5 mins left for post flt & pre flt procedures. Good game.
Not entirely true although I share the sentiments!
All a question of time and motion - if you get your skates on them some (if not all if the bowser arrives a bit late) of the preflight preparation and briefing can be done before pumping starts. PM goes out to do walkround, plugs in headset etc. and watches refuelling but also keeps eagle eye out for when all pax are off - when they are nip up to the flightdeck to complete brief/preparation etc whilst watching for approaching departing pax - when sighted nip out again to finish refuel supervision and sign receipt etc.
Yes it keeps you on your toes and is not ideal in terms of a relaxed environment but it is possible to do if everything is going for you and anyway if it's anywhere near a full load both ways it's likely there will be some other reason for delay other than refuel supervision!
Not saying I like the concept of 25 minutes though!