yes, tis a minefield isn't it. Worst bit about breeding seems to be stallion selection. I have another mare who is in foal currently to a son of Cassini I - I don't suppose there is a chance of the grey gene hopping across to this foal? (Sire is bay).
Ballyshan I owe you a guiness as I seem to have side tracked your post will buy you one if ever you get over here