If knowledge is out there--even if I don't have immediate access to it--then my belief held on faith might be false... so why hold to a belief that might be false? It's... inefficient at the least. Especially considering that our human instincts are to defend beliefs we like, it seems too great an expenditure of life to accept, uproot, accept, uproot, etc...

Everybody is different. Antony Flew changed his mind. Just keep yours open as you are doing now.