Actually, if you pay attention to your beloved Mossi FB Mk IV like I do, you'll notice that you get 35 mins of flight when you wheels up and then it actually stretches a bit longer.
Don't worry, I know my mossie
VI very well. The WEP consumes nearly twice the fuel than at MIL power. Given that you will be using about 5 minutes of WEP, possibly even a minute or two longer if used intermittently (cooling), you'll end up at about 30 min effective sortie time. In practive, I'll still be landing with a few more lbs of fuel in the tanks due to RPM/throttle management when loitering, and during the RTB trip.
Point being, when fuel is an issue then players need to think twice. When fuel is an after thought... who cares?
This is why we have such a high fuel burn multiplier (FBM). Given the ease of bombing the fuel depots in a base from 20k with laser guided bombs, or even strafing planes, in AH1 we often had the fuel porked across entire fronts. Look at the clipboard map at all the fields with a red dar ring around them. All these bases will be at minimum fuel. If fuel porking is to be reintroduced, the FBM will have to come down. I prefer the current situation.