> I had considered that, but it too has drawbacks.  Such as if one pump
> fails, you have lost access to all the fuel in that wing.
True, but that's not quite as urgent an issue. I'm thinking of adding a
transfer pump for that, and the convenience of using all the fuel in one
tank.

> If you keep the Andair valve, I'm not so sure it will handle the higher
pressures.
> Also, more pressurized lines in the cabin.
I have very short lines in the back, and a solenoid to switch the return.

Every systems has it's good and bad points. :(
John