I'm so sorry for your loss. I lost one this week too, and although I've been down this road many time over the years, it never gets easier and it always feels in the beginning like I'll never be able to bear it. I know now that I will emerge from the terrible darkness I'm feeling now ... that it will simply take time. I never stop loving and missing them, but the sharp pain lessens and the part of them that lives on in my heart becomes more and more of presence and a comfort.
I've had five greyhounds and two galgos. Only two of the greyhounds would I consider reliable on recall: my first one, Frostman, and my current girl, Princess. Excellent recall with both of them. The rest, not so much.