The A-530's were the same way. I don't know that it took THAT long for them to hang in one position consistantly. I have some Shimano SPD-SLs (road pedals). They hang exactly the same way so it's the same motion to tip the pedal forward and clip in. I bought those used and they've hung that way the whole time I've had them.

I find the road pedals very easy to clip into, - easier than SPDs, even though they're one sided.