I dont think anyone is knocking the dog or the hare, for big open land saluki saturated lurchers can not be betterd.
As most comps/ matches are run on the fens this is the lurcher most choose to run.
But for lads that run different ground that much saluki in the mix, wouldn't work for them.
If you shave round the edges,(ive found nose trimmers good) and super glue butterfly stitches, it will help close it up a bit, and speed up recovery, also purple spray then wound powder, works like a plaster without covering it up.
It's probably all the cereals in it that are the problem, so adding more wont solve it.
A lot of the cheaper stuff, will get the proteins from cereals, and then just add something like sa37/sf50 to get the required supplemts and minerals you see on the packet.