Fly the attitude please, with a check of the asi from time to time. Learn to feel the aircraft, know how it handles.
Flying a 3-axis microlight with no stall warner installed (cheese us! that would add another 600 grammes or so!) I can only agree. Turned a handful of circuits yesterday, trying various approach speeds and feeling the plane, I am coming to terms with it. Even the one time I let the ASI get rather low I felt it in my pants (or was it my stomach? can't be sure) before confirming on the needle.