I have Ultegra SPD-SL pedals and I love them. My son uses some Shimano SPD pedals (M505s, I think) and he has trouble clipping in his unclipped foot when we take off at a stop. I have a set of SPD-SL pedals I can put on his bike (which would require a cleat change) but I am loathe to do it if it won't help much.
What sayest thou? Be SPD-SL easier to clip in to than SPD?