Scar up or scar down?

I am sure someone asked about this a couple of weeks ago, so I did an experiment with my dwarf beans. The answer is:

Dwarf beans - it didn't matter which way up I put the bean - they found their way to the top and shoots are appearing now.

Broad beans, however, are a little confused. I can't remember how I planted these but I have just had to turn one round as the roots were poking out of the top  Thought the shoots were looking a bit odd!

I've heard they are more likely to rot if planted flatsides down. I always plant on edge. Never really thought about scar up or down, I'll experiment next year. They always sort themselves out even if the roots go up to begin with

i sowed my broad beans on their side and all but one came up then low and behold about a week later the last one came up,so patience is required too

strange isn't it, but I've never worried and just 'bunged them in' but this year I've had a bean that was growing root upwards But I suppose planted deeper it would have righted itself without me knowing .....but these 'new' composts do seem to slump down a lot in the pots