dlV, I don't have the 152 book in front of me, but I accept what you say. For a short-field landing, I would use 55 knots over the fence (I think the one knot extra is acceptable, given the accuracy of the ASI).
However, for a glide approach, I was taught (by RAF instructors) to use a speed significantly higher, to allow for the high induced drag with the (larger than usual) flare at the bottom of the glide (especially with full flap, a low nose attitude and high RoD). At anything less than 60 knots over the fence, without any power to cushion the flare, I found the 152 drops like a brick! Not a good idea, when the undercarriage bends with the impact and the CFI and chief engineer are standing at the window 100 yards from the threshold watching!
I would be interested in your input, it's been too long since I flew a light aircraft, I'll need all the help I can get to get current again.